Key switch of electric baby carriage

Abstract

The utility model provides a key switch for a baby carriage. The key switch comprises a shell, an inner cylinder, a circuit board, a light-transmitting plate and a bottom cover, the inner cylinder is inserted into the shell, a panel is formed at one end of the shell, and pattern hollow holes are formed in the panel; the circuit board comprises a substrate, a microswitch and an LED lamp which are arranged at the top end of the substrate, and a power supply terminal arranged at the bottom end of the substrate; the top end of the light-transmitting plate is provided with a filling block matched with the hollowed-out pattern, the bottom end of the light-transmitting plate is provided with a contact, the light-transmitting plate is arranged between the inner cylinder and the circuit board, the filling block of the light-transmitting plate is embedded in the hollowed-out hole, and the contact abuts against a contact of the microswitch and can press the contact when the panel is pressed; the bottom cover covers the bottom end of the shell, and the bottom cover is provided with a receding hole for the power supply terminal to penetrate out. The key switch of the electric baby carriage is simple in structure, sensitive in signal transmission, stable and reliable in operation and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of electric baby carriages, and in particular to a key switch of an electric baby carriage. Background Art

[0002] At present, most of the one-button start switches for children's cars on the market are traditional one-button start switches, which use pure mechanical contacts, have a high failure rate, are easy to damage, and have a short service life. Utility Model Content

[0003] The utility model aims to provide a key switch for an electric baby carriage suitable for signal transmission, which reduces the failure rate and prolongs the service life.

[0004] In order to achieve the above objectives, the utility model provides the following technical solutions:

[0005] The utility model provides a push button switch for an electric baby carriage, comprising an outer shell, an inner cylinder, a circuit board, a light-transmitting plate and a bottom cover; the inner cylinder is inserted into the outer shell and forms a panel at one end of the outer shell, and the panel is provided with a pattern hollow hole; the circuit board comprises a substrate, a micro switch and an LED lamp arranged at the top end of the substrate, and a power terminal arranged at the bottom end of the substrate; a filling block matching the hollow pattern is arranged at the top end of the light-transmitting plate, a contact is arranged at the bottom end of the light-transmitting plate, the light-transmitting plate is arranged between the inner cylinder and the circuit board, the filling block is embedded in the hollow hole, the contact is pressed against the contact of the micro switch, and the contact can touch the contact when the panel is pressed; the bottom cover is arranged at the bottom end of the outer shell, and a clearance hole for the power terminal to pass through is provided on the bottom cover.

[0006] In one embodiment, the bottom cover includes a bottom plate and a bottom cover assembly ring disposed on the top of the bottom plate, a plurality of hooks are distributed on the periphery of the bottom cover assembly ring, and the outer shell is provided with a snap-in opening corresponding to the hooks.

[0007] In one embodiment, the housing is provided with a guiding inclined surface at a position corresponding to the bayonet for facilitating the hook to be hooked into the bayonet.

[0008] In one embodiment, an inner positioning rib is provided on the inner side of the outer shell, a first positioning notch is provided on the base plate, a second positioning notch is provided on the outer side of the inner cylinder, a third positioning notch is provided on the assembly ring of the bottom cover, and the inner positioning rib is embedded in the first positioning notch, the second positioning notch and the third positioning notch.

[0009] In one embodiment, the inner cylinder includes an inner cylinder assembly ring formed at the bottom end, the inner cylinder assembly ring is provided with a limiting notch, and the inner side of the outer shell is provided with a limiting rib, and the limiting rib is embedded in the limiting notch.

[0010] In one embodiment, the limiting notch includes a large limiting notch and a small limiting notch, and a large limiting rib and a small limiting rib are provided on the inner side of the shell, which are correspondingly inserted into the large limiting notch and the small limiting notch.

[0011] In one embodiment, the large limiting rib is composed of two limiting strips disposed at intervals, and the two limiting strips are pressed against the large limiting notch at both ends in the width direction of the large limiting notch.

[0012] In one embodiment, the power terminal is provided with an elastic arm, and the elastic arm is provided with a hook, and the hook is hooked on a preset notch of the bottom cover when the power terminal passes through the bottom cover.

[0013] In one embodiment, a pair of elastic buckles are provided on the outer periphery of the shell.

[0014] In one embodiment, an external positioning rib is provided between the pair of elastic buckles.

[0015] The technical solution provided by the utility model has the following beneficial effects: by providing an outer shell, an inner cylinder, a light-transmitting plate, a circuit board and a bottom cover that are matched and connected, the inner cylinder forms a panel on the outer shell, and when the panel is pressed, the force is transmitted to the light-transmitting plate, and the contacts of the light-transmitting plate touch the contacts of the micro switch on the circuit board, thereby realizing the on-off control of the circuit, and indicating the on-off of the circuit by turning on and off the LED light on the circuit board, the signal transmission is sensitive, the operation is stable and reliable, and the electric baby carriage key switch has a simple structure and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments of the present invention.

[0017] Figure 1 A three-dimensional diagram of a key switch for an electric baby carriage provided by an embodiment of the utility model;

[0018] Figure 2 for Figure 1 An exploded view of the key switch of the electric stroller shown;

[0019] Figure 3 for Figure 1 An exploded view of the key switch of the electric stroller from another perspective;

[0020] Figure 4 A three-dimensional diagram of a housing provided in accordance with an embodiment of the present utility model;

[0021] Figure 5 for Figure 4 A perspective view of the housing from another perspective is provided;

[0022] Figure 6A three-dimensional diagram of an inner cylinder provided in one embodiment of the utility model;

[0023] Figure 7 for Figure 6 A three-dimensional image of the inner cylinder from another perspective is provided;

[0024] Figure 8 A front view schematic diagram of a light-transmitting plate provided in one embodiment of the utility model;

[0025] Fig. 9 for Figure 8 A schematic diagram of the back side of the light-transmitting plate is provided;

[0026] Fig.10 A three-dimensional diagram of a circuit board provided in one embodiment of the utility model;

[0027] Fig.11 A three-dimensional diagram of a bottom cover provided in one embodiment of the utility model;

[0028] Fig.12 A schematic diagram of the internal structure of an electric baby carriage key switch provided by an embodiment of the utility model without the bottom cover and the circuit board;

[0029] Fig.13 for Figure 1 A cross-sectional view of the key switch of the electric stroller is shown. DETAILED DESCRIPTION

[0030] The embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are only for exemplary purposes and are not intended to limit the scope of protection of the present invention.

[0031] It should be understood that the various steps described in the method implementation of the present utility model can be performed in different orders and / or performed in parallel. In addition, the method implementation may include additional steps and / or omit the steps shown. The scope of the present utility model is not limited in this respect.

[0032] The term "including" and its variations used herein are open inclusions, i.e., "including but not limited to". The term "connected" may be directly connected or indirectly connected through intermediate components (elements). The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments". The relevant definitions of other terms will be given in the following description.

[0033] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish between devices, modules or units, and are not used to limit these devices, modules or units to be different devices, modules or units, nor are they used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0034] See also Figures 1 to 13 The utility model relates to a push button switch for an electric baby carriage (hereinafter referred to as "push button switch"), which is used to be installed on the electric baby carriage to realize a one-button start function. The push button switch has sensitive signal transmission, stable and reliable operation, long service life, simple structure and low cost.

[0035] The key switch comprises an outer shell, an inner tube, a circuit board, a light-transmitting plate and a bottom cover.

[0036] The shell 1 is open at both ends and is provided with an inner cavity 10 .

[0037] The inner tube 2 is inserted into the inner cavity 10 of the outer shell, and a step 213 is provided at one end. The step 213 passes through the outer shell 1 to form a panel 211 on the outer side of the outer shell end. The panel 211 is provided with a pattern hollow hole 212.

[0038] The circuit board 4 is arranged in the inner tube 2, and includes a substrate 41, a micro switch 42 and an LED lamp 43 arranged at the top of the substrate 41, and a power terminal 44 arranged at the bottom of the substrate. The power terminal is used to connect to the power supply of the external circuit to connect the key switch to the power supply. The micro switch 42 has a contact 421, and the micro switch 42 is electrically connected to the LED lamp 43 and the power terminal 44.

[0039] A filling block 31 matching the hollow pattern is provided at the top of the light-transmitting plate 3, and a contact 32 is provided at the bottom of the light-transmitting plate. The light-transmitting plate 3 is arranged between the inner tube 2 and the circuit board 4, and its filling block is embedded in the pattern hollow hole 212. The contact 32 is pressed against the contact 421 of the micro switch 42, and the contact can touch the contact when the panel 211 is pressed.

[0040] The bottom cover 5 is disposed at the bottom end of the housing 1 and is provided with a clearance hole 511 for the power terminal to pass through.

[0041] In one embodiment, when the panel is pressed, the contact touches the contact of the micro switch, the circuit connected to the push switch is turned on, and the LED light is turned on; when the panel is pressed again, the circuit connected to the push switch is disconnected, and the LED light is turned off, thereby realizing the on-off control of the circuit.

[0042] Therefore, by providing the outer shell 1, the inner cylinder 2, the light-transmitting plate 3, the circuit board 4 and the bottom cover 5 which are matched and connected, the inner cylinder forms a panel on the outer shell. When the panel is pressed, the force is transmitted to the light-transmitting plate, and the contacts of the light-transmitting plate touch the contacts of the micro switch on the circuit board, thereby realizing the on-off control of the circuit, and indicating the on-off of the circuit by the on and off of the LED light on the circuit board. The signal transmission is sensitive, the operation is stable and reliable, and the electric baby carriage key switch has a simple structure and a long service life.

[0043] Please combine Fig.11 In one embodiment, the bottom cover 5 includes a bottom plate 51 and a bottom cover assembly ring 52 arranged on the top of the bottom plate, the clearance hole 511 is opened on the bottom plate 51, and a plurality of hooks 521 are distributed on the periphery of the assembly ring. The shell 1 is provided with a bayonet 11 corresponding to the hook, and the bottom cover and the shell are snap-connected by snapping the hook into the bayonet, which facilitates the assembly of the shell and the bottom cover.

[0044] In one embodiment, the housing is provided with a guiding inclined surface 12 at a position corresponding to the bayonet 11 for facilitating the hook to be hooked into the bayonet, thereby further improving the efficiency of assembling the housing and the bottom cover.

[0045] In one embodiment, an inner positioning rib 13 is provided on the inner side of the outer shell 1, a first positioning notch 411 is provided on the base plate 41, a second positioning notch 221 is provided on the outer side of the inner cylinder 2, and a third positioning notch 522 is provided on the assembly ring 52 of the bottom cover, and the inner positioning rib 13 is embedded in the first positioning notch 411, the second positioning notch 221 and the third positioning notch 522.

[0046] In one embodiment, the inner cylinder 2 includes a cylinder body 21 and an inner cylinder assembly ring 22 formed on the outer periphery of the bottom end of the cylinder body 21, the inner cylinder assembly ring 22 is provided with a limiting notch, and the inner side of the outer shell is provided with a limiting rib, and the limiting rib is embedded in the limiting notch.

[0047] In one embodiment, the limiting notch includes a large limiting notch 223 and a small limiting notch 222 , and a large limiting rib 15 and a small limiting rib 14 are provided on the inner side of the shell 1 , which are correspondingly inserted into the large limiting notch 223 and the small limiting notch 222 .

[0048] In one embodiment, the large limiting rib is composed of two limiting strips disposed at intervals, and the two limiting strips are pressed against the large limiting notch at both ends in the width direction of the large limiting notch.

[0049] In one embodiment, the power terminal 44 is provided with an elastic arm 441 , and the elastic arm is provided with a hook. When the power terminal 44 passes through the bottom cover, the hook is hooked on a preset notch of the bottom cover 5 , and the preset notch is connected to the clearance hole 511 .

[0050] In one embodiment, a pair of elastic buckles 16 are provided on the outer periphery of the housing 1 .

[0051] In one embodiment, an external positioning rib 17 is provided between the pair of elastic buckles 16 .

[0052] By providing an elastic buckle and an external positioning rib, the push button switch can be easily installed on the electric baby carriage, thereby improving assembly efficiency.

[0053] The technical solution provided by the utility model has the following beneficial effects: by providing an outer shell, an inner cylinder, a light-transmitting plate, a circuit board and a bottom cover that are matched and connected, the inner cylinder forms a panel on the outer shell, and when the panel is pressed, the force is transmitted to the light-transmitting plate, and the contact of the light-transmitting plate contacts the moving contact of the micro switch on the circuit board, thereby realizing the on-off control of the circuit, and indicating the on-off of the circuit by turning on and off the LED light on the circuit board, the signal transmission is sensitive, the operation is stable and reliable, and the electric baby carriage key switch has a simple structure and a long service life.

[0054] The above description is only a preferred embodiment of the utility model and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the utility model involved in the utility model is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the concept of the above utility model. For example, the above features are replaced with the technical features of the utility model (but not limited to) with similar functions in the utility model of the utility model to form a technical solution.

[0055] Although the subject matter has been described in language specific to structural features and / or methodological logical actions, it should be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or actions described above. On the contrary, the specific features and actions described above are merely example forms of implementing the claims.

Claims

1. A push button switch for an electric baby carriage, characterized in that: It includes an outer shell, an inner tube, a circuit board, a light-transmitting plate and a bottom cover; The inner cylinder is inserted into the outer shell and forms a panel at one end of the outer shell, and the panel is provided with patterned hollow holes; The circuit board includes a substrate, a micro switch and an LED lamp arranged at the top end of the substrate, and a power terminal arranged at the bottom end of the substrate; A filling block matching the hollow pattern is provided at the top of the light-transmitting plate, and a contact is provided at the bottom of the light-transmitting plate. The light-transmitting plate is arranged between the inner tube and the circuit board, and its filling block is embedded in the hollow hole. The contact is pressed against the contact point of the micro switch, and the contact point can be pressed when the panel is pressed; The bottom cover is arranged at the bottom end of the shell, and a clearance hole is arranged on the bottom cover for the power terminal to pass through.

2. The electric baby carriage key switch according to claim 1, characterized in that: The bottom cover comprises a bottom plate and a bottom cover assembly ring arranged at the top of the bottom plate. A plurality of hooks are distributed on the periphery of the bottom cover assembly ring, and the housing is provided with a bayonet corresponding to the hooks.

3. The electric baby carriage key switch according to claim 2, characterized in that: The housing is provided with a guiding inclined surface at a position corresponding to the bayonet for facilitating the hook to be hooked into the bayonet.

4. The electric baby carriage key switch according to claim 2, characterized in that: An inner positioning rib is provided on the inner side of the shell, a first positioning notch is provided on the base plate, a second positioning notch is provided on the outer side of the inner cylinder, a third positioning notch is provided on the assembly ring of the bottom cover, and the inner positioning rib is embedded in the first positioning notch, the second positioning notch and the third positioning notch.

5. The electric baby carriage key switch according to claim 1, characterized in that: The inner cylinder comprises an inner cylinder assembly ring formed at the bottom end, the inner cylinder assembly ring is provided with a limiting notch, and the inner side of the outer shell is provided with a limiting rib, and the limiting rib is embedded in the limiting notch.

6. The electric baby carriage key switch according to claim 5, characterized in that: The limiting notch includes a large limiting notch and a small limiting notch. The inner side of the shell is provided with a large limiting rib and a small limiting rib, which are correspondingly inserted into the large limiting notch and the small limiting notch.

7. The electric baby carriage key switch according to claim 6, characterized in that: The large limiting rib is composed of two limiting strips arranged at intervals, and the two limiting strips are pressed against the large limiting notch at both ends in the width direction of the large limiting notch.

8. The electric baby carriage key switch according to claim 1, characterized in that: The power terminal is provided with an elastic arm, and the elastic arm is provided with a hook. When the power terminal passes through the bottom cover, the hook is hooked on the preset notch of the bottom cover.

9. The electric baby carriage key switch according to claim 1, characterized in that: A pair of elastic buckles are arranged on the outer periphery of the shell.

10. The electric baby carriage key switch according to claim 9, characterized in that: External positioning ribs are arranged between the pair of elastic buckles.

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