CN210805577U

CN210805577U - Driving power supply

Info

Publication number: CN210805577U
Application number: CN201922178184.1U
Authority: CN
Inventors: 徐昌春
Original assignee: Taizhou Sanshan Electric Appliance Co ltd
Current assignee: Taizhou Sanshan Electric Appliance Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-06-19
Anticipated expiration: 2029-12-06

Abstract

The utility model provides a driving power supply belongs to electrical equipment technical field. It has solved the poor problem of current drive power switch control stability. This drive power supply, including the casing, set up on the casing and can inwards press the button and fix the circuit board in the casing, the face of circuit board sets up along the direction of pressing of button, has two electrical contact points on the circuit board, and the inner of button has conductive rubber, and two electrical contact points all are located the side global of circuit board, and conductive rubber is relative with two electrical contact points, and conductive rubber can press on two electrical contact points along the direction of pressing when pressing the button. This drive power supply can improve switch stability and life.

Description

Driving power supply

Technical Field

The utility model belongs to the technical field of electrical equipment, a drive power supply is related to.

Background

The driving power supply is a power converter which converts power supply into specific voltage and current to drive the LED to emit light, so that a circuit board is arranged in the driving power supply, a button for controlling an LED switch is arranged on a shell of the driving power supply, and the on-off of a circuit on the circuit board is controlled through the button.

The existing matching relationship between the button and the circuit board is like a color lamp electric appliance control box disclosed in a patent document (application number: 02227841.9), the circuit board is fixed in a shell, an electric contact is arranged on the side face of the circuit board, the conductive rubber button is opposite to the side face of the circuit board, the circuit board is similar to a novel LED lamp battery box disclosed in a patent document (201320701621.3), a switch key is arranged on the side face of the circuit board, a waterproof shell is sleeved on the switch key, pressing force acts on the board face of the circuit board when the button is pressed, the circuit board is of a plastic thin-plate structure, the supporting capability in the direction perpendicular to the board face is poor, if the pressing force is large, the circuit board can be bent and deformed, the circuit board is easy to deform and not reset after long-term use, the circuit board is in a bending state, even the.

In view of the poor supporting capability of the vertical direction of the board surface of the circuit board, the vertical driving power supply of the lamp disclosed in the patent document (201510763243.5) adopts another layout mode, namely, the circuit board is vertically fixed in the shell, the switch is positioned on the side surface of the edge of the end part of the circuit board, and the sealing element is sleeved on the switch.

Because the defects of the two methods are that the circuit board is deformed or loosened, the natural idea that the skilled person easily thinks about deformation is to increase the structural strength of the circuit board itself, such as selecting a circuit board model with a larger thickness and supporting the circuit board in the compression direction, and the natural idea that the skilled person easily thinks about loosening the circuit board is to increase the fixing force of the shell to the circuit board, such as increasing the fixing position and the fixing force, but any of the above methods will lead to the complication of the internal structure of the shell and increase the cost.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a drive power supply for solve current drive power supply switch control poor stability, influence life's problem.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a drive power supply, includes the casing, sets up the button that can inwards press on the casing and fix the circuit board in the casing, the face of circuit board sets up along the direction of pressing of button, has two electrical contact on the circuit board, its characterized in that, the inner of button has conductive rubber, two electrical contact all is located the side of circuit board on global, conductive rubber is relative with two electrical contact, and conductive rubber can press on two electrical contact along pressing the direction when pressing the button.

The button can be pressed inwards to enable the conductive rubber to have a stroke along the pressing direction, the purpose is to control the electric connection and disconnection between two electric contacts, the circuit board is fixed in the shell, the fixing mode of the circuit board and the shell can adopt conventional modes such as welding, clamping, bonding and the like, but the arrangement direction of the circuit board is consistent with the pressing direction of the button, the conductive rubber at the inner end of the button is opposite to the lateral periphery of the circuit board, different from the existing electric contacts which are all positioned on the board surface of the circuit board, the electric contacts are arranged on the lateral periphery of the circuit board, namely on the outer periphery surrounding the circuit board and positioned between the board surfaces at two sides of the circuit board, the conductive rubber on the button is opposite to the two electric contacts, when the button is pressed, the conductive rubber is pressed on the electric contact along the pressing direction, such as the length direction or the width direction, the lateral acting force of slope or perpendicular to face can not produce the circuit board, make full use of the higher deflection and the intensity of circuit board in length or width direction, directly transmit the acting force for the casing, and crooked deformation or slope etc. can not appear in self, have guaranteed the stability of circuit board to improve the contact stability between conductive rubber and the electrical contact, and then improve switch stability and life.

In the above-mentioned drive power supply, the border of circuit board has the breach of indent, the lateral surface of circuit board includes the bottom surface of border terminal surface and breach, two the electrical contact all is located the bottom surface of breach, and conductive rubber can imbed in the breach when pressing the button. The electric contact is taken as the stress position, and the setting of breach makes the electric contact go deep into the circuit board inboard, and for border terminal surface, the partial structural strength of circuit board of breach bottom surface department is higher to improve the stability of point contact.

In the above driving power supply, the bottom surface of the notch has two convex portions, the two convex portions are arranged at intervals along the length direction of the bottom surface of the notch, and the electrical contact includes a conductive plating layer coated on the convex portions. Conductive coating cladding convex part increases fixed area between them, avoids frequently pressing down conductive coating and drops, and conductive rubber is soft, with conductive coating cladding on the convex part, and conductive rubber presses on conductive coating and deformation when pressing, and in conductive coating can imbed conductive rubber, the effect of conductive rubber cladding conductive coating is produced, increases conductive rubber and conductive coating's area of contact, and then improves contact stability between them.

In the above driving power supply, the side surfaces of the two sides of the convex part are coplanar with the two side surfaces of the circuit board respectively, and the height of the conductive plating layer is smaller than the depth of the notch. The convex part has certain width and thickness, and both sides side and circuit board both sides face coplane to make the convex part have higher intensity, avoid pressing the atress fracture to appear, its highly be less than the breach degree of depth, conductive rubber stretches into breach and conductive coating contact when pressing, when the too big conductive rubber that leads to of pressing force degree squints to the lateral part, the breach lateral wall can be spacing conductive rubber, avoids it to break away from conductive coating, improves contact stability between them, and then improves switch stability.

In foretell drive power supply, the button adopts elastic material to make, the button is including the installation department that is the tube-shape and the splenium that is located the installation department inboard and is connected with the installation department, the installation department links firmly with the casing mutually, splenium is the column, and presses the inner of splenium relative with two electrical contact, conductive rubber fixes on the inner terminal surface of splenium. Elastic material's button has better operation and feels, and has better buffering effect when pressing to target in place, avoids producing hard impact to the circuit board, improves circuit board stability, and the installation department is used for fixed mounting, presses the splenium to be used for pressing the operation to realize conductive rubber's removal.

In the above-mentioned drive power supply, the casing is provided with a mounting hole, the mounting portion is located in the mounting hole, the outer peripheral surface of the mounting portion is fixedly attached to the wall of the mounting hole, the outer peripheral surface of the pressing portion is connected with the inner peripheral surface of the outer end of the mounting portion through an annular elastic membrane, a plurality of radially protruding limiting portions are circumferentially arranged on the inner peripheral surface of the mounting portion, the limiting portions are provided with arc-shaped limiting surfaces, the limiting surfaces are opposite to the pressing portion, and a gap is formed between the limiting surfaces and the outer peripheral surface of the pressing portion. Installation department and mounting hole laminating are fixed and form sealedly, elastic diaphragm realizes the installation department and presses elastic connection between the splenium and form sealed waterproof, spacing portion and press and have the clearance between the splenium, reduce the interference between the two when pressing, avoid frequently pressing for a long time and lead to coming unstuck between installation department and the casing according to the splenium, tear etc., improve life, spacing face in the spacing portion can avoid pressing the splenium to press the excessive slope of in-process appearance simultaneously, guarantee the contact stability of conductive rubber and electrical contact.

In the above-mentioned drive power supply, the inner peripheral face circumference of installation department has annular sealing, the seal groove has been seted up to circumference on the sealing terminal surface, the casing medial surface has the sealed protruding edge that encircles the mounting hole setting, and seals protruding edge embedding seal inslot and form and link firmly. The sealing convex edge and the sealing groove on the sealing part form sealing and fixedly connecting, so that the sealing shape is increased, and the connecting strength between the mounting part and the shell can be increased.

In the above driving power supply, the lower end surface of the mounting portion is provided with a limiting groove arranged along the radial direction, the upper edge of the circuit board is embedded into the limiting groove, the bottom surface of the limiting groove is abutted against the end surface of the edge of the circuit board, and the inner end surface of the conductive rubber is flush with the bottom surface of the limiting groove. The circuit board is fixed a position the installation department, prevents that the aversion from appearing in the installation department to support the location to sealing portion and installation department through the circuit board, make the structure of button more stable, it is sealed more reliable.

In the above driving power supply, the edge of the circuit board has a protruding boss, the lateral periphery of the circuit board includes an edge end face and a boss mesa, and the electrical contact is located on the boss mesa. The structure enables the lug boss to directly protrude out of the edge end face of the circuit board, and the circuit board does not need to be subjected to opening design.

In the above-mentioned driving power supply, the side circumference of the circuit board includes a flat edge end face, and the electrical contact is located on the edge end face. Simple structure and more convenient processing.

In the above driving power supply, a through hole is formed in the end face of the housing, a lens is fixed in the through hole, the inner side face of the lens is an arc-shaped concave surface, and an infrared receiving head is fixed on the circuit board and is opposite to the concave surface. The infrared signal of outside sees through lens and is received by infrared ray receiving head after concave surface refraction, and the concave surface sets up the receiving range that can increase the infrared ray.

Compared with the prior art, the driving power supply has the following advantages:

1. because the electrical contact sets up on the side global of circuit board, electrically conductive rubber presses on the electric shock along pressing the direction when pressing the button, consequently, the pressing force that produces the circuit board is along the face direction of circuit board, can not produce the side direction effort of slope or perpendicular to face to the circuit board, make full use of the higher stiffness and the intensity of circuit board in length or width direction, consequently, crooked deformation or slope etc. can not appear in the circuit board, the stability of circuit board has been guaranteed, thereby improve the contact stability between electrically conductive rubber and the electrical contact, and then improve switch stability and life.

2. Because conductive coating cladding convex part, conductive rubber is soft, and conductive rubber presses on conductive coating and deformation when pressing, and conductive coating can be embedded into conductive rubber in, produces the effect of conductive rubber cladding conductive coating, increases conductive rubber and conductive coating's area of contact, and then improves contact stability between them.

3. Because edge embedding spacing inslot on the circuit board, and spacing tank bottom surface support and lean on the border terminal surface of circuit board, the circuit board is fixed a position the installation department, prevents that the aversion from appearing in the installation department to support the location to sealing portion and installation department through the circuit board, make the structure of button more stable, it is sealed more reliable.

Drawings

Fig. 1 is a schematic perspective view of a driving power supply.

Fig. 2 is a plan view of the structure of the driving power source.

Fig. 3 is a partial sectional view of the structure at a-a in fig. 2.

Fig. 4 is an enlarged view of the structure at B in fig. 3.

Fig. 5 is a partial structural cross-sectional view at C-C in fig. 2.

Fig. 6 is a schematic view of the structure of the button.

Fig. 7 is a partial cross-sectional view of the structure at D-D in fig. 2.

In the figure, 1, a housing; 11. mounting holes; 12. sealing the convex edge; 13. a through hole; 2. a button; 21. an installation part; 22. a pressing part; 23. an elastic diaphragm; 24. a limiting part; 241. a limiting surface; 25. a sealing part; 251. a sealing groove; 26. a limiting groove; 3. a circuit board; 31. a lateral periphery; 32. a notch; 33. a convex portion; 4. an electrical contact; 41. a conductive plating layer; 5. a conductive rubber; 6. a lens; 61. a groove; 62. a concave surface; 63. positioning the convex edge; 7. an infrared receiving head.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The first embodiment is as follows:

as shown in fig. 1, fig. 2, fig. 3 shows, a driving power supply, including casing 1, circuit board 3 and button 2, circuit board 3 is fixed in casing 1 along vertical, mounting hole 11 has been seted up on the up end of casing 1, button 2 fixed mounting is in mounting hole 11, combine fig. 7 to show, through-hole 13 has still been seted up on 1 up end of casing, be fixed with circular lens 6 in through-hole 13, circumference has the protruding edge 63 of location on the outer peripheral face of this lens 6, through-hole 13 inner wall links firmly with the outer wall of lens 6 and the protruding edge 63 butt fusion of location, circular recess 61 has on the medial surface of lens 6, the bottom surface of recess 61 has the concave surface 62 that is the arc indent, be fixed with infrared receiver 7 on the circuit board 3, this infrared receiver 7 is relative with the concave surface 62 of lens 6. As shown in fig. 4 and 5, the push button 2 includes a pressing portion 22 capable of being pressed inward, the pressing portion 22 is columnar and is vertically disposed, and the pressing portion 22 and the mounting hole 11 have the same center line, that is, the surface of the circuit board 3 is arranged along the pressing direction of the pressing part 22, the sheet-shaped conductive rubber 5 is fixed on the inner end surface of the pressing part 22, the pressing part 22 and the conductive rubber 5 are both positioned right above the circuit board 3, the circuit board 3 is a double-sided circuit board, two electric contacts 4 are arranged on the circuit board 3, the two electric contacts 4 are both arranged on the side peripheral surface 31 of the circuit board 3, the conductive rubber 5 is arranged above the two electric contacts 4, the conductive rubber 5 is opposite to the two electric contacts 4, the conductive rubber 5 and the electric contacts 4 have a space in a natural state, and when the button 2 is pressed, the conductive rubber 5 can be pressed against the two electric contacts 4 in a pressing direction, so that the electric connection between the two contacts is realized.

Specifically, the upper end edge of the circuit board 3 has an inwardly concave notch 32, the side circumferential surface 31 of the circuit board 3 includes an edge end surface and a bottom surface of the notch 32, the bottom surface of the notch 32 has two convex portions 33, the two convex portions 33 are arranged at intervals along the length direction of the bottom surface of the notch 32, the side surfaces of the two sides of the convex portions 33 are coplanar with the side surfaces of the two sides of the circuit board 3, the electrical contact 4 includes a conductive plating layer 41 coated on the convex portions 33, the conductive plating layer 41 can be tin-plated, copper-plated, and the like, the height of the conductive plating layer 41 is smaller than the depth of the notch 32, and when the button 2 is pressed, the.

As shown in fig. 6, the button 2 is made of elastic material, such as rubber, silicon gel, etc., the button 2 further includes a cylindrical mounting portion 21, the mounting portion 21 is located in the mounting hole 11, the outer peripheral surface of the mounting part 21 is fixedly attached to the wall of the mounting hole 11 to form a seal, the pressing part 22 is positioned on the inner side of the mounting part 21, the outer end of the pressing part 22 protrudes out of the mounting hole 11, and the outer peripheral surface of the outer end of the pressing portion 22 is connected with the inner peripheral surface of the outer end of the mounting portion 21 through an annular elastic membrane 23, so that the pressing part 22 and the mounting part 21 have the same central line, the inner circumferential surface of the mounting part 21 is circumferentially provided with a plurality of radially protruding limiting parts 24, the limiting parts 24 are all provided with arc-shaped limiting surfaces 241, the plurality of limiting surfaces 241 and the pressing portion 22 have the same center line, the limiting surfaces 241 are opposite to the pressing portion 22, and a gap is formed between the limiting surfaces 241 and the outer peripheral surface of the pressing portion 22. The inner end peripheral surface circumference of installation portion 21 has annular sealing 25, and seal groove 251 has been seted up to the circumference on the sealing 25 terminal surface, and casing 1 medial surface has the protruding edge 12 of sealing that sets up around mounting hole 11, and the protruding edge 12 embedding of sealing forms sealedly to link firmly in the seal groove 251. The lower end face of the mounting portion 21 is provided with a limiting groove 26 which is arranged along the radial direction, the inner end of the limiting groove 26 penetrates through the inner circumferential surface of the mounting portion 21, the outer end penetrates through the outer circumferential surface of the sealing portion 25, the upper edge of the circuit board 3 is embedded into the limiting groove 26, the bottom surface of the limiting groove 26 abuts against the edge end face of the circuit board 3, and the inner end face of the conductive rubber 5 is flush with the bottom surface of the limiting groove 26.

Example two:

the structure of the driving power supply is basically the same as that of the first embodiment, and the difference is that the edge of the circuit board 3 is provided with a convex boss, the side peripheral surface 31 of the circuit board 3 comprises an edge end surface and a boss table surface, the electric contact 4 is positioned on the boss table surface, and the boss is directly protruded out of the edge end surface of the circuit board 3 by the structure without opening the circuit board 3.

Example three:

the structure of the driving power supply is basically the same as that of the first embodiment, and the difference is that the side peripheral surface 31 of the circuit board 3 comprises a straight edge end surface, and the electric contact 4 is positioned on the edge end surface, so that the structure is simple, and the processing is more convenient.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms housing 1, mounting hole 11, sealing lip 12, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a drive power supply, includes casing (1), sets up button (2) that can inwards press on casing (1) and fixes circuit board (3) in casing (1), the face of circuit board (3) sets up along the direction of pressing of button (2), has two electrical contact (4) on circuit board (3), its characterized in that, the inner of button (2) has electrically conductive rubber (5), two electrical contact (4) all are located the side global (31) of circuit board (3), electrically conductive rubber (5) are relative with two electrical contact (4), and electrically conductive rubber (5) can press on two electrical contact (4) along pressing the direction when pressing button (2).

2. The driving power supply according to claim 1, wherein the edge of the circuit board (3) has a concave notch (32), the side peripheral surface (31) of the circuit board (3) comprises an edge end surface and a bottom surface of the notch (32), the two electrical contacts (4) are both located on the bottom surface of the notch (32), and the conductive rubber (5) can be embedded into the notch (32) when the button (2) is pressed.

3. The driving power supply according to claim 2, wherein the bottom surface of the notch (32) has two protrusions (33), the two protrusions (33) are spaced apart along the length of the bottom surface of the notch (32), and the electrical contact (4) comprises a conductive plating (41) coated on the protrusions (33).

4. The driving power supply according to claim 3, wherein two side surfaces of the convex portion (33) are coplanar with two side surfaces of the circuit board (3), respectively, and the height of the conductive plating layer (41) is smaller than the depth of the notch (32).

5. The driving power supply according to claim 3 or 4, wherein the button (2) is made of an elastic material, the button (2) comprises a cylindrical mounting portion (21) and a pressing portion (22) located inside the mounting portion (21) and connected with the mounting portion (21), the mounting portion (21) is fixedly connected with the housing (1), the pressing portion (22) is cylindrical, the inner end of the pressing portion (22) is opposite to the two electrical contacts (4), and the conductive rubber (5) is fixed on the end face of the inner end of the pressing portion (22).

6. The driving power supply according to claim 5, wherein the housing (1) is provided with a mounting hole (11), the mounting portion (21) is located in the mounting hole (11), the outer peripheral surface of the mounting portion (21) is attached to the wall of the mounting hole (11) and fixedly connected to the wall of the mounting hole, the outer peripheral surface of the outer end of the pressing portion (22) is connected to the inner peripheral surface of the outer end of the mounting portion (21) through an annular elastic membrane (23), a plurality of radially protruding limiting portions (24) are circumferentially arranged on the inner peripheral surface of the mounting portion (21), the limiting portions (24) are provided with arc-shaped limiting surfaces (241), the limiting surfaces (241) are opposite to the pressing portion (22), and a gap is formed between the limiting surfaces (241) and the outer peripheral surface of the pressing portion (22).

7. The driving power supply according to claim 5, wherein an annular sealing portion (25) is circumferentially arranged on the outer peripheral surface of the inner end of the mounting portion (21), a sealing groove (251) is circumferentially formed in the end surface of the sealing portion (25), a sealing convex edge (12) arranged around the mounting hole (11) is arranged on the inner side surface of the housing (1), and the sealing convex edge (12) is embedded into the sealing groove (251) to form a fixed connection.

8. The driving power supply according to claim 7, wherein a radially arranged limiting groove (26) is formed in a lower end surface of the mounting portion (21), an upper edge of the circuit board (3) is embedded into the limiting groove (26), a bottom surface of the limiting groove (26) abuts against an edge end surface of the circuit board (3), and an inner end surface of the conductive rubber (5) is flush with the bottom surface of the limiting groove (26).

9. The drive power supply according to claim 3 or 4, characterized in that the edge of the circuit board (3) has a protruding boss, the side circumference (31) of the circuit board (3) comprises an edge end face and a boss land, and the electrical contact (4) is located on the boss land.

10. The drive power supply according to claim 9, characterized in that the side circumference (31) of the circuit board (3) comprises a flat edge end face on which the electrical contacts (4) are located.

11. The driving power supply according to any one of claims 1 to 4, wherein a through hole (13) is formed in an end surface of the housing (1), a lens (6) is fixed in the through hole (13), an inner side surface of the lens (6) is an arc concave surface (62), an infrared receiving head (7) is fixed on the circuit board (3), and the infrared receiving head (7) is opposite to the concave surface (62).