Table lamp

Abstract

The utility model discloses a desk lamp which comprises a bulb, a base and a power supply assembly. The conductive limiting connection mechanism comprises two power connection sheets used for connecting the positive electrode and the negative electrode respectively and a limiting connection assembly; the two power connection pieces are arranged up and down in the axial direction of the base, and the power connection piece located on the lower portion is pressed to abut against the end of a metal head of the bulb. The other power connection sheet is propped against the side part of the metal head of the bulb; the limiting connecting assembly comprises a spiral part formed on the periphery of the metal head and at least two flanges located on the inner periphery of the base. The flanges are arranged in a staggered mode in the axial direction of the base. The metal head of the bulb is matched with the flanges through the spiral part to form spiral limiting, and the metal head is pressed by the two power connection pieces in the axial direction and the circumferential direction so as to form limiting fixing and conductive matching. According to the table lamp, the problems that an existing table lamp is large in size, limited by the size of the lamp holder assembly and incapable of being designed and manufactured in a more extreme miniaturization mode are solved.

Description

Technical Field

[0001] The utility model relates to the field of lamp product production, and particularly relates to a desk lamp. Background Art

[0002] The volume of the existing desk lamp is restricted by the volume of the lamp head assembly, and its height has been high, seriously restricting the development of miniaturization of the desk lamp. Specifically, because the existing lamp head assembly is a standard component, which includes a lamp head and a lamp holder part, the height of the combination of the two restricts the compression of the overall height (the lowest can only be reduced to 110 mm). And the base of the desk lamp needs to cover the entire lamp head assembly, that is, a large base is required for assembly. Coupled with various control components and power supply components, the volume of the entire desk lamp will become very large, thus restricting the development and innovation of miniaturization of the desk lamp.

[0003] Moreover, with the large volume of the base, it is impossible to configure a very small bulb, otherwise it is difficult to match in terms of aesthetics. For this reason, some R & D personnel directly cancel the lamp head assembly, and the filament in the bulb is directly connected to the circuit board for soldering (tin soldering). However, this method has the problem of easy detachment, and it becomes loose during transportation, resulting in failure to light up. Moreover, this method also needs to bond the bulb and the base by means of glue. Once a phenomenon such as soldering loosening occurs, the entire product will be scrapped. In this way, the defective rate is high, the manufacturing cost is high, and the process difficulty is greater. When glue leakage or overflow occurs, the aesthetics is greatly reduced. Another method is to use a snap connection form, but this method is also loose, showing left - right, front - back swinging and shaking, etc., and the stability is not good.

[0004] In summary, the existing desk lamp needs to be further improved. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above - mentioned defects or problems in the background art, and provide a desk lamp with simple structure, easy manufacturing, easy implementation and low cost, so as to solve the problems that the existing desk lamp has a large volume, is limited by the size of the lamp head assembly, and cannot be designed and manufactured to be more extremely miniaturized.

[0006] To achieve the above - mentioned purpose, the utility model adopts the following technical scheme:

[0007] A desk lamp, which includes a bulb, a base and a power supply component; further includes: a conductive limiting connection mechanism, which is used to limit and install the bulb on the base and is electrically connected to the power supply component;

[0008] The conductive limiting connection mechanism includes two electrical connection pieces respectively used for connecting positive and negative electrodes and a limiting connection component;

[0009] The two power connection pieces are arranged axially up and down along the base, and the power connection piece located at the lower part is pressed against the metal head end of the bulb; the other power connection piece abuts against the side of the metal head of the bulb;

[0010] The limiting connection assembly includes a spiral part formed on the outer periphery of the metal head and at least two flanges located on the inner periphery of the base; the flanges are arranged axially staggered along the base; wherein, the metal head of the bulb forms a spiral limit through the cooperation of the spiral part and the flanges, and the metal head is pressed by the two power connection pieces in the axial and circumferential directions to form a limit fixation and electrical conduction cooperation.

[0011] Further, the power connection piece in pressing fit with the side of the metal head is suspended above the other power connection piece through a connecting column, and the power connection piece is provided with a socket part for cooperating with the side of the metal head.

[0012] Further, the socket part is in a ring shape or a semi-circular ring shape.

[0013] Further, the position where the side of the metal head is connected to the end is arranged as a conical surface; wherein, the socket part is correspondingly arranged at the conical surface position, and the diameter of the socket part is larger than the diameter of the end of the metal head and smaller than the diameter of the side of the metal head.

[0014] Further, a through hole is provided on the power connection piece cooperating with the end of the metal head, and the aperture of the through hole is smaller than the diameter of the end.

[0015] Further, the through hole is coaxially arranged with the socket part.

[0016] Further, the two power connection pieces are arranged in a spatially staggered manner.

[0017] Further, the electronic control board of the power supply assembly is arranged parallel to the lower part of the power connection piece cooperating with the end of the metal head.

[0018] Further, the power supply assembly further includes a storage battery, a charging interface and a switch; the storage battery is installed in the base and is electrically connected to the charging interface and the electronic control board; the switch is arranged on the base and is used to send an electrical signal to the electronic control board to turn on or off the lighting of the bulb.

[0019] As can be seen from the above description of the present invention, compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The present utility model provides a desk lamp, which has a simple structure, is easy to manufacture, easy to implement and has a low cost. It solves the problem that the existing desk lamp is large in volume, limited by the size of the lamp head assembly, and cannot be designed and manufactured to be more extremely miniaturized. The desk lamp of the present novelty breaks the traditional way of installing a lamp head assembly, eliminates the bondage of the lamp head assembly, and can reduce the entire height to 70 mm, giving the possibility of a more miniaturized design for the desk lamp. The entire base can be made smaller, and the bulb can also be reduced in volume accordingly. In this way, the manufacturing and material costs are lower. More importantly, the packaging and transportation costs can also be reduced. Moreover, the present novelty uses the metal head of the bulb and does not need to customize a special bulb body to reduce the volume. The bulb can be directly purchased, thus reducing the bulb customization cost. The cooperating part uses a flange design and is helically engaged with the metal head to form a preliminary limit. As the helical engagement moves downward, the two power connection pieces respectively press against the metal head (using the elasticity of the power connection pieces to form axial and circumferential pressing). In this way, a three-dimensional limit is formed with the flange in space, making the entire bulb tightly fitted to the base and enabling smooth power connection. There is no need to fix it in the way of glue, and there is no need to worry about problems such as vibration and wire breakage during transportation, etc. It has the advantages of reduced volume, more reliable power connection, no need for other connection structure assistance, and lower cost.

[0021] (2) The present utility model arranges the two power connection pieces in a spatial dislocation and forms a socket part for sleeving the metal head, so as to increase the contact area. At the same time, a connecting column is suspended, so that the power connection piece can deform, and then form the pressing for power connection and limit.

[0022] (3) The present novelty sets the socket part to be annular or semi-annular, and sets the diameter of the socket part to be larger than the diameter of the end part of the metal head and smaller than the diameter of the side part of the metal head. In this way, through the annular setting, guiding and rectifying are carried out, and at the same time, the phenomenon of short circuit caused by the contact between the end part and the side part of the metal head is avoided. In addition, the position where the side part and the end part of the metal head are connected is a conical surface, so that it can better cooperate with the pressing of the socket part and make the contact more stable.

[0023] (4) In addition, a through hole is also provided on the other power connection piece, and the aperture of the through hole is smaller than the diameter of the end part of the metal head. It not only has a guiding and rectifying effect, but also changes the contact from point contact to linear contact, with a larger contact area and better electrical conductivity.

[0024] (5) The present novelty arranges the electronic control board of the power supply component parallel to the power connection piece cooperating with the end part of the metal head, so as to greatly reduce the overall height and enable the volume of the entire base to be further reduced. Description of the Drawings

[0025] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0026] Figure 1 Schematic diagram of the three-dimensional exploded structure of the desk lamp described in the present utility model Figure Two

[0027] Figure 2 Schematic diagram of the three-dimensional structure of the desk lamp described in the present utility model Figure Two

[0028] Figure 3 Cross-section of the desk lamp described in the present utility model Figure One ;

[0029] Figure 4 Cross-section of the desk lamp described in the present utility model Figure Two . Detailed implementation manners

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are the preferred embodiments of the present utility model and should not be regarded as excluding other embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0031] In the claims, the description, and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, when using terms such as "first", "second", or "third", etc., are for distinguishing different objects and not for describing a specific order.

[0032] In the claims, the description, and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, for orientation terms, when using terms such as "center", "horizontal", "vertical", "level", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "clockwise", "counterclockwise", etc. to indicate the orientation or positional relationship, it is based on the orientation and positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as limiting the specific protection scope of the present utility model.

[0033] In the claims, the description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, when using the terms "fixed connection" or "fixedly connected", it should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, being integrated as a whole, and being fixedly connected through other devices or components.

[0034] In the claims, the description and the above-mentioned drawings of the present utility model, when using the terms "comprising", "having" and their variants, are intended to mean "including but not limited to".

[0035] See Figures 1-4 , a desk lamp described in the present model includes a bulb 1, a base 2 and a power supply assembly 3; the desk lamp described in this embodiment breaks the limitation of the minimum height of traditional desk lamps (if the height of the existing desk lamp adopts a lamp head assembly, its minimum height can only be 110 mm or more, and it cannot break through further downward, which also limits the design and manufacture of desk lamps, and it is impossible to create a smaller volume, and it limits the use of lamps for portability, outdoor and various occasions;

[0036] The desk lamp described in the present model further includes: a conductive limit connection mechanism 4, which is used to limit and install the bulb 1 on the base 2 and is electrically connected to the power supply assembly 3;

[0037] The conductive limit connection mechanism 4 includes two power connection pieces 41, 42 for connecting positive and negative electrodes and a limit connection assembly 43;

[0038] The two power connection pieces 41, 42 are power connection pieces made of metal, generally taking copper sheets as an example; the two power connection pieces 41, 42 are arranged axially up and down along the base 2, and the lower power connection piece 42 is pressed against the metal head end 11 of the bulb 1; the other power connection piece 41 abuts against the metal head side 12 of the bulb 1; in the axial up and down arrangement here, the two power connection pieces 41, 42 are also arranged vertically with spatial intersection;

[0039] Moreover, one of the power connection pieces 41 is provided with a socket part 411 that cooperates with the metal head side 12, and the socket part 411 is set to be annular or semi-annular. The present model takes the annular shape as an example to illustrate. Through the annular setting of the socket part 411 for guiding and aligning, at the same time, it avoids the phenomenon of short circuit caused by the contact between the metal head end 11 and the side 12;

[0040] A through hole 421 is opened on the other power connection piece 42, and the aperture of the through hole 421 is smaller than the diameter of the end; in the present model, the through hole 421 is coaxially arranged with the socket part 411, so as to ensure that the metal head and the power connection pieces 41, 42 can be coaxially assembled, improving the stability of the assembly.

[0041] The limiting connection component 43 includes a spiral part 431 formed on the outer periphery of the metal head and at least two flanges 432 located on the inner periphery of the base 2;

[0042] Each of the flanges 432 is arranged axially offset along the base 2. Here, the flange 432 is a bump formed on the inner peripheral wall of the base 2, and the axially upper and lower spaces of each bump are offset and arranged, and the spacing is one or two spiral positions;

[0043] Among them, the bulb 1 still adopts the original bulb structure and does not need to be customized; the metal head of the bulb 1 forms a spiral limit through the cooperation of the spiral part 431 and each flange 432, and the metal head is pressed axially and circumferentially by the two electrical connection pieces 41 and 42 to form a limit fixation and electrical conduction cooperation; such cooperation enables the entire bulb 1 to form a limit assembly in multiple directions, that is, including the axial and circumferential limits of the flange 432 and the spiral part 431, the radial pressing of the socket part 411 and the metal head, and the pressing of the end of the metal head against the other electrical connection piece 42, and the elastic pressing of the electrical connection pieces 41 and 42 is respectively used for pressing, so that the assembly is stable and the reliability of electrical connection is ensured at the same time.

[0044] The base 2 can be made by plastic injection molding, made of metal, or made of natural stone;

[0045] The power supply component 3 includes an electronic control board 31, a storage battery 32, a charging interface 33, and a switch 34; in order to reduce the overall height, the electronic control board 31 is arranged parallel below the electrical connection piece 42 that cooperates with the end 11 of the metal head; in addition, the storage battery 32 is installed in the base 2 and is electrically connected to the charging interface 33 and the electronic control board 31; the switch 34 is arranged on the base 2 and is used to send an electrical signal to the electronic control board 31 to turn on or off the bulb 1.

[0046] More specifically, the present invention also sets the position where the side part 12 of the metal head is connected to the end part 11 as a conical surface 13; among them, the socket part 411 is arranged at the position of the conical surface 13, and the diameter of the socket part 411 is larger than the diameter of the end part and smaller than the diameter of the side part, so that it can better cooperate with the pressing of the socket part 411 and make the contact more stable.

[0047] During actual assembly: as Figures 1-4 shown,

[0048] (1) The base 2 is divided into a shell 21 and a seat body 22; the shell 21 is formed by stretching and stamping with metal; and an installation channel 211 and an accommodation space 212 that communicate with each other are formed inside the base 2, and a flange 432 is formed in the installation channel 211; and the accommodation space 212 is used to place the power supply component 3 and the two electrical connection pieces 41 and 42;

[0049] (2) A seat body 22, on which a power control board 31, a storage battery 32 and a charging interface 33 are formed; the power control board 31 is fixed to the seat body 22 by screws and is located below the power connection pieces 41 and 42; the storage battery 32 is installed on the side of the power connection piece 42 and is electrically connected to the power control board 31, the switch 34 and the charging interface 33 through electric wires (not shown in the figure); the switch 34 and the charging interface 33 are respectively arranged on the side or the bottom of the seat body 22;

[0050] (3) First, fix a power connection piece 42 to the seat body 22 by screws and connect it to the positive pole of the power control board 31 through an electric wire; a through hole 421 is provided on this power connection piece 42;

[0051] (4) Fix the other power connection piece 41 to the connection post 220 on the seat body 22 by screws. The power connection pieces 41 and 42 have annular socket parts 411; after assembly, it is directly connected to the housing 21 as a whole by screws;

[0052] (5) Perform a spiral fit between the spiral part 431 of the metal head of the bulb 1 and the flange 432. During the downward spiral movement, the conical surface 13 on the side of the metal head first presses downward against the socket part 411. Continue to spiral downward until the end part 11 of the metal head is sleeved and pressed at the position of the through hole 421 and is in pressing contact with the edge of this through hole 421, so as to achieve multi-point limit assembly and ensure the stability of power connection; with this setting and assembly, not only can the height be reduced and the volume be miniaturized, but also the assembly is more stable, the power connection is stable and not easy to loosen, there is no need to worry about the problem of wire breakage during transportation, and the cost is also lower.

[0053] The present utility model provides a desk lamp, which has a simple structure, is easy to manufacture, easy to implement and has a low cost. It solves the problem that the existing desk lamp is large in size and limited by the size of the lamp head assembly, and cannot be designed and manufactured to be more extremely miniaturized. The desk lamp of the present novelty breaks the traditional way of installing a lamp head assembly, eliminates the restriction of the lamp head assembly, and can reduce the entire height to 70 mm, giving the possibility of a more miniaturized design for the desk lamp. The entire base can be made smaller, and the bulb can also be reduced in volume accordingly. In this way, the manufacturing and material costs are lower. More importantly, the packaging and transportation costs can also be reduced. Moreover, the present novelty uses the metal head of the bulb and does not need to customize a special bulb body to reduce the volume. The bulb can be directly purchased, thus reducing the bulb customization cost. The part cooperating with it adopts a flange design and forms a preliminary limit with the metal head through a spiral fit. As the spiral fit moves downward, the two power connection pieces respectively press against the metal head (forming axial and circumferential pressing by using the elasticity of the power connection pieces). In this way, a three-dimensional limit is formed with the flange in space, so that the entire bulb is tightly fitted to the base and can be energized smoothly, and there is no need to fix it in the way of glue. There is no need to worry about problems such as vibration and wire breakage during transportation, etc. It has a reduced volume, more reliable power connection and does not require other connection structures to assist, and the cost is lower. The present utility model arranges the two power connection pieces in a spatial dislocation and forms a socket part for sleeving the metal head, so as to increase the contact area. At the same time, a connecting column is suspended, so that the power connection piece can deform, and then form the pressing for power connection and limit. The present novelty sets the socket part into a ring shape or a semi-ring shape, and sets the diameter of the socket part to be larger than the diameter of the end part of the metal head and smaller than the diameter of the side part of the metal head. In this way, through the ring-shaped setting, it conducts guiding and alignment, and at the same time avoids short-circuit phenomena caused by the contact between the end part and the side part of the metal head. In addition, the position where the side part and the end part of the metal head are connected is a conical surface, so that it can better cooperate with the pressing of the socket part and make the contact more stable. In addition, a through hole is provided on the other power connection piece, and the aperture of the through hole is smaller than the diameter of the end part of the metal head. It not only has a guiding and alignment effect, but also changes the contact from point contact to linear contact, with a larger contact area and better electrical conductivity. The present utility model arranges the electronic control board of the power supply component parallel to the power connection piece cooperating with the end part of the metal head, so as to greatly reduce the overall height and further reduce the volume of the entire base.

[0054] The above description of the specification and embodiments is used to explain the protection scope of the present utility model, but does not constitute a limitation on the protection scope of the present utility model.

Claims

1. A desk lamp comprising a light bulb, a base and a power supply assembly; characterized in that: Also includes: A conductive limit connection mechanism, which is used to limit the position of the light bulb on the base and is electrically connected to the power supply assembly; A conductive limit connection mechanism, comprising two contact pieces for connecting the positive and negative electrodes respectively and a limit connection assembly; The two power connection plates are arranged vertically along the axis of the base, and the power connection plate at the lower part is pressed against the metal head end of the bulb; the other power connection plate is pressed against the side of the metal head of the bulb; The limit connection assembly includes a spiral portion formed on the outer periphery of the metal head and at least two flanges located on the inner periphery of the base; each of the flanges is staggered along the axial direction of the base; wherein the metal head of the bulb cooperates with each flange through the spiral portion to form a spiral limit, and the metal head is pressed by two electrical terminals in the axial and circumferential directions to form a limit fixation and conductive cooperation.

2. A table lamp as claimed in claim 1, characterized in that: The power connection piece that is pressed and matched with the side of the metal head is suspended above another power connection piece through a connecting column, and the power connection piece is provided with a sleeve connection part that matches with the side of the metal head.

3. A table lamp as claimed in claim 2, characterized in that: The sleeve connection portion is in a ring shape or a semicircular ring shape.

4. A table lamp as claimed in claim 3, characterized in that: The position where the side of the metal head meets the end is set in a conical surface; wherein the sleeve portion is correspondingly set at the position of the conical surface, and the diameter of the sleeve portion is larger than the diameter of the end of the metal head and smaller than the diameter of the side of the metal head.

5. A table lamp as claimed in claim 4, characterized in that: A through hole is arranged on the power connection plate matched with the end of the metal head, and the aperture of the through hole is smaller than the diameter of the end.

6. A table lamp as claimed in claim 5, characterized in that: The through hole is coaxially arranged with the sleeve portion.

7. A table lamp as claimed in claim 6, characterized in that: The two power connection plates are arranged in a staggered manner in space.

8. A table lamp as claimed in claim 1, characterized in that: The electric control board of the power supply assembly is arranged in parallel below the power connection piece matched with the end of the metal head.

9. A table lamp as claimed in claim 1, characterized in that: The power supply assembly also includes a battery, a charging interface and a switch; the battery is installed in the base and is electrically connected to the charging interface and the electric control board; the switch is arranged on the base and is used to send an electrical signal to the electric control board to turn the light bulb on or off.

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