Long-rod electronic candle with improved structure
By simplifying the electrical connection structure of long pole electronic candles and adopting integrated design, the parts and complex welding processes are reduced, and the problems of complex electrical connections and poor stability in the prior art are solved, thereby achieving lower cost and higher stability of electrical connection effects.
Patent Information
- Application Number
- CN202421601975.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-07-08
AI Technical Summary
The electrical connection structure of existing long pole electronic candles is complex, with many parts, complex production and assembly, which increases product costs and poor electrical connection stability.
A long cylindrical prototypical wax tube with an integrated structure is equipped with a circular tubular battery compartment and a PCB board. The positive electrode electrical connection is achieved through the through hole on the top plate of the battery compartment and the positive electrode contacts of the PCB board. The two ends of the conductive strip are respectively in contact with the negative electrode contacts of the PCB board and the conductive parts of the end cover, simplifying the electrical connection structure.
Reduces electrically connected parts, simplifies assembly process, reduces product costs, and improves the stability of electrical connections.
Smart Images
Figure CN222688112U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electronic simulation candles, in particular to a long-stem electronic candle with an improved structure. Background Art
[0002] Among the existing electronic simulation candles, a common long-stem electronic candle structure includes a long cylindrical shaped wax tube, a PCB board arranged in the shaped wax tube, an LED lamp electrically connected to the PCB board and extending upward from the top of the shaped candle, a shaped flame cover sleeved on the outside of the LED lamp, a dry battery for powering the PCB board, and an end cover for closing the bottom end of the shaped wax tube. Among them, since the shaped wax tube of this type of long-stem electronic candle is only suitable for loading dry batteries in the axial direction, but its inner diameter is significantly larger than the diameter of the dry batteries, in order to ensure the stability of the electrical connection and prevent the dry batteries from loosening, it is necessary to additionally load a cylindrical battery compartment for fixing the dry batteries in the shaped wax tube; but after the battery compartment is set, when the dry batteries are electrically connected to the PCB board, the existing structure is to penetrate and fix a conductive column on the top surface of the battery compartment, and then the two ends of the wire are respectively welded to the PCB board and the conductive column to connect the positive electrode, while the negative electrode is electrically connected through a conductive strip, one end of the conductive strip is welded to the PCB board, and the other end extends along the inner wall of the shaped wax tube to the bottom end, and is pressed and fixed on the inner wall of the shaped wax tube by a conductive ring adapted to the inner wall of the shaped wax tube, and then an elastic contact is set on the end cover to contact and conduct with the conductive ring, and finally the spring on the end cover contacts and conducts with the negative electrode of the dry battery. In this structure, the electrical connection structure between the dry cell and the PCB board has many parts, and the production and assembly are complicated, which increases the product cost. In addition, since there are many electrical connection points and many of them require manual welding, the stability of the electrical connection during use is poor. Utility Model Content
[0003] The purpose of the utility model is to improve the existing long-stem candle structure of this type, thereby reducing parts, simplifying production and assembly, reducing product costs, and improving the stability of product electrical connections.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A long-stem electronic candle with an improved structure comprises a long cylindrical profiling wax tube with an integrated structure, a cylindrical battery compartment which is inserted and fixed to the lower section of the profiling wax tube, a dry battery installed in the battery compartment along the axial direction, an end cover which is detachably fixed to the bottom end of the profiling wax tube, a PCB board which is axially arranged in the profiling wax tube and fixed to the top end of the battery compartment, and an LED lamp which is electrically connected to the PCB board and extends upward from the top end of the profiling wax tube; the top end of the battery compartment has an integrally formed top plate, and the center of the top plate has a hole for the dry battery to be placed in the battery compartment. A through hole extending upward from the positive electrode, and a fixing groove for inserting and fixing the PCB board is formed on the top plate, the bottom edge of the PCB board has a positive electrode contact that contacts the positive electrode of the dry battery, and one side edge of the PCB board has a negative electrode contact, a conductive member that contacts and conducts with the negative electrode of the dry battery is fixed in the end cover, and the wall of the battery compartment or the contoured wax tube is also provided with an axial slot, and a conductive strip is inserted in the slot. After assembly, the upper end of the conductive strip contacts and conducts with the negative electrode contact, and the lower end contacts and conducts with the conductive member.
[0006] The beneficial effect of the above scheme is that: a through hole is opened on the top plate of the battery compartment so that the positive electrode of the dry battery installed in the battery compartment can directly extend out of the battery compartment, and then a positive electrode contact is set on the bottom edge of the PCB board, so that when the PCB board is inserted into the fixed groove, the positive electrode can be electrically connected to the dry battery, and the two ends of the conductive strip that conducts the negative electrode are respectively in contact with the negative electrode contact of the PCB board and the conductive part of the end cover. Compared with the electrical connection structure of this type of long-stem electronic candle in the prior art, the electrical connection of the positive and negative electrodes does not require manual welding during the assembly process, and also eliminates the conductive column, wire, and conductive ring of the positive electrode. This not only greatly simplifies product assembly and reduces product costs, but also enhances the stability of the electrical connection due to the reduction of intermediate parts for electrical connection and the elimination of manual welding.
[0007] In a preferred embodiment, the dry cell comprises two cells connected in series along the axial direction.
[0008] The beneficial effect of the above scheme is that the length of the shaped wax tube is sufficient to install two dry batteries, which can extend the working time of the electronic candle, and the battery compartment can ensure the stability of the two dry batteries connected in series.
[0009] In a preferred embodiment, the slot is formed on the inner wall of the battery compartment and penetrates axially; the slot has a constricted cross-section, so that the conductive strip is confined within the slot.
[0010] The beneficial effect of the above scheme is that: the slot is set on the inner wall of the battery compartment, and the slot cross-section of the slot is in a constricted shape. During assembly, the conductive strip can be first inserted into the slot and fixed to the battery compartment into an integral structure, which can facilitate welding the upper end of the conductive strip to the PCB board and prevent the conductive strip from swinging after welding and affecting the reliability of the electrical connection of the welding point; at the same time, the conductive strip is fixed in the slot and its lower end will not swing, thereby ensuring the reliability of the electrical connection when in contact with the end cover.
[0011] In a preferred embodiment, the top of the slot corresponds to one end of the interior of the fixing slot along the length direction, so that the upper end of the conductive strip extends out of the slot and fits against an inner wall of one end of the fixing slot.
[0012] The beneficial effect of the above scheme is that the upper end of the conductive strip is attached to the inner wall of the fixing groove. When the PCB board is inserted into the fixing groove, the conductive strip is clamped between the PCB board and the inner wall of the fixing groove and cannot be loosened. The negative electrode contact on the side of the PCB board can be closely and reliably contacted with the conductive strip, thereby ensuring the reliability of the electrical connection.
[0013] In a preferred embodiment, the width of the upper end of the conductive strip extending out of the top of the slot is narrower than the rest of the slot, and the hole of the slot passing through the top plate is adapted to the width of the upper end of the conductive strip, so that the top of the slot forms a limiting step for axially limiting the conductive strip.
[0014] The beneficial effects of the above scheme are: on the one hand, the upper end of the conductive strip is narrower and can be adapted to the width of the fixing groove; on the other hand, the limiting step can limit the axial upward movement of the conductive strip, thereby ensuring that the bottom end of the conductive strip will not move upward and loosen when in contact with the conductive part of the end cover, thereby causing poor contact, thereby further improving the reliability of the electrical connection.
[0015] In a preferred embodiment, the bottom end of the conductive strip exceeds the bottom end of the battery compartment, and the bottom end of the conductive strip is in a convex arc shape.
[0016] The beneficial effect of the above scheme is that the bottom end of the conductive strip is convex arc-shaped, and when the end cover is fixed to the bottom end of the contoured wax tube, regardless of whether the angle is deviated, it can ensure contact and conduction with the bottom end of the conductive strip, thereby ensuring the reliability of the electrical connection.
[0017] In a preferred embodiment, the conductive member comprises a metal inner cover nested and fixed in the end cover, and a spring installed on the center line of the metal inner cover and electrically connected thereto; when the end cover is combined with the contoured wax tube, the bottom end of the conductive strip contacts the metal inner cover, and the spring contacts the negative pole of the dry cell.
[0018] The beneficial effect of the above solution is that: the conductive inner cover is in contact with the conductive strip, which is simpler in structure than the elastic contact method of the existing end cover, and there is no metal fatigue, so that the electrical connection is more reliable.
[0019] In a preferred embodiment, the outer periphery of the bottom of the battery compartment is formed with a retaining edge that abuts against the bottom end of the contoured wax tube, and a coupling section that extends axially downward beyond the retaining edge and has an external thread, and the end cover has an internal thread that cooperates with the thread of the coupling section.
[0020] The beneficial effects of the above scheme are: after the battery compartment can be plugged into the contoured wax tube, the retaining edge can ensure the accuracy of the plug-in position; since the end cover is connected to the external thread of the coupling section through the internal thread, and the conductive strip is in contact with the metal inner cover, the structure is simpler than the existing products of this type in which the end cover is provided with an external thread and an elastic contact electrically connected to the conductive ring is provided on the side wall of the external thread.
[0021] In a preferred embodiment, corresponding axial ribs and assembly grooves are formed between the battery compartment and the contoured wax tube so that the two can be plug-fitted in an axial interference fit.
[0022] The beneficial effect of the above solution is that the battery compartment and the contoured wax tube are plugged together by interference fit, which further simplifies the installation of the battery compartment.
[0023] In a preferred embodiment, the PCB board has a long strip section extending upward along the axial direction of the contoured wax tube, and the pins of the LED lamp are welded to the top of the long strip section.
[0024] The beneficial effect of the above scheme is that: the PCB board extends into a long strip section, and the LED lamp pin is welded on the top of the long strip section. On the one hand, it eliminates the need to connect the LED lamp and the PCB board through wires, simplifies the assembly and improves the reliability of the electrical connection. On the other hand, during assembly, the LED lamp, LCB board and battery compartment are assembled into an integrated structure, and it only needs to be inserted into the shaped wax tube from the bottom so that the LED lamp extends from the top of the shaped wax tube. Compared with the existing wire connection method, it greatly simplifies the assembly and improves the reliability of the structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The utility model is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] Figure 1 It is a schematic diagram of the structure of the profiling wax tube in the embodiment;
[0027] Figure 2 A cross-sectional schematic diagram of the overall structure of the electronic candle in the embodiment;
[0028] Figure 3 This is a schematic diagram of the structure of the battery compartment, PCB board and conductive strip part in the embodiment;
[0029] Figure 4 A top view of the battery compartment in the embodiment;
[0030] Figure 5 A bottom end view of the battery compartment in the embodiment;
[0031] Figure 6 Schematic diagram of the cross-sectional structure of the end cover and the conductive member in the embodiment. DETAILED DESCRIPTION
[0032] The utility model is further described below in conjunction with the accompanying drawings:
[0033] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. In the description of the present application, it should be understood that the orientation or positional relationship indicated in the terms is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. In addition, unless otherwise clearly specified and limited, terms such as "install", "connect", "connect", and "fix" should be understood in a broad sense, and those of ordinary skill in the art can understand the specific meanings of the above terms in the present application according to the specific circumstances.
[0034] refer to Figures 1 to 6As shown, a long-stem electronic candle of an improved structure in this embodiment comprises a long cylindrical shaped wax tube 1 of an integral structure, a tubular battery compartment 2 which is fixedly inserted in the lower section of the shaped wax tube 1, a dry battery 3 axially mounted in the battery compartment 2, an end cap 4 detachably fixed to the bottom end of the shaped wax tube 1, a PCB board 5 axially arranged in the shaped wax tube 1 and fixed to the top end of the battery compartment 2, and an LED lamp 6 which is electrically connected to the PCB board 5 and extends upward from the top end of the shaped wax tube 1; the top end of the battery compartment 2 has an integrally formed top plate 21, and the center of the top plate 21 has a positive electrode for the dry battery 3. A through hole 22 extends upward, and a fixing groove 23 for inserting and fixing the PCB board 5 is formed on the top plate 21. The bottom edge of the PCB board 5 has a positive contact 51 that contacts the positive electrode of the dry battery 3, and one side edge of the PCB board 5 has a negative contact 53. A conductive member 41 that contacts and conducts with the negative electrode of the dry battery 3 is fixed in the end cover 4. The wall of the battery compartment 2 or the contoured wax tube 1 is also provided with an axial slot 24, and a conductive strip 7 is inserted in the slot 24. After assembly, the upper end of the conductive strip 7 contacts and conducts with the negative contact 53, and the lower end contacts and conducts with the conductive member 41. A through hole 22 is provided on the top plate 21 of the battery compartment 2 so that the positive electrode of the dry battery 3 installed in the battery compartment 2 can directly extend out of the battery compartment 2, and then a positive electrode contact 51 is provided at the bottom edge of the PCB board 5 so that the positive electrode can be electrically connected to the dry battery 3 when the PCB board 5 is inserted into the fixing groove 23, and the two ends of the conductive strip 7 for conducting the negative electrode are respectively in contact with the negative electrode contact 53 of the PCB board 5 and the conductive member 41 of the end cover 4 for conducting. Compared with the electrical connection structure of such long-stem electronic candles in the prior art, the electrical connection of the positive and negative electrodes does not require manual welding during the assembly process, and parts such as the conductive column, the wire of the positive electrode, and the conductive ring of the negative electrode are also omitted, which not only greatly simplifies the product assembly and reduces the product cost, but also enhances the stability of the electrical connection due to the reduction of intermediate parts for electrical connection and the omission of manual welding.
[0035] In a preferred embodiment, the dry battery 3 of this embodiment includes two dry batteries 3 connected in series along the axial direction. The length of the shaped candle tube 1 is sufficient to install two dry batteries 3, which can extend the working time of the electronic candle, and the battery compartment 2 can ensure the stability of the two dry batteries 3 connected in series.
[0036] A preferred solution, the slot 24 of this embodiment is formed on the inner wall of the battery compartment 2 and penetrates along the axial direction; the slot section of the slot 24 is in a constricted shape, so that the conductive strip 7 is limited in the slot 24. The slot 24 is arranged on the inner wall of the battery compartment 2, and the slot section of the slot 24 is in a constricted shape. During assembly, the conductive strip 7 can be first inserted into the slot 24 and fixed to the battery compartment 2 as an integral structure, which can facilitate the welding of the upper end of the conductive strip 7 with the PCB board 5, and also prevent the conductive strip 7 from swinging after the welding is completed, thereby affecting the reliability of the electrical connection of the welding point; at the same time, the conductive strip 7 is fixed in the slot 24, and its lower end will not swing, thereby ensuring the reliability of the electrical connection when contacting with the end cover 4.
[0037] A preferred solution is that the top of the slot 24 of this embodiment corresponds to one end of the interior of the fixing slot 23 along the length direction, so that the upper end 72 of the conductive strip 7 is attached to the inner wall of one end of the fixing slot 23 after extending out of the slot 24. The upper end 72 of the conductive strip 7 is attached to the inner wall of the fixing slot 23. When the PCB board 5 is inserted into the fixing slot 23, the conductive strip 7 is sandwiched between the side of the PCB board 5 and the inner wall of the fixing slot 23 and cannot be loosened. The negative contact 53 on the side of the PCB board 5 can be in close and reliable contact with the conductive strip 7, ensuring the reliability of the electrical connection.
[0038] A preferred solution is that the width of the upper end portion 72 of the conductive strip 7 extending out of the top of the slot 24 in this embodiment is narrower than the rest of the portion, and the hole 242 of the slot 24 passing through the top plate 21 is adapted to the width of the upper end portion 72 of the conductive strip 7, so that a limiting step for axially limiting the conductive strip 7 is formed at the top of the slot 24. On the one hand, the upper end portion 72 of the conductive strip 7 is relatively narrow and can be adapted to the width of the fixing slot 23, and on the other hand, the limiting step can limit the axial upward movement of the conductive strip 7, thereby ensuring that the bottom end 71 of the conductive strip 7 will not move upward and loosen when in contact with the conductive member 411 of the end cover 4, thereby further improving the reliability of the electrical connection.
[0039] A preferred solution is that the bottom end 71 of the conductive strip 7 of this embodiment exceeds the bottom end of the battery compartment 2, and the bottom end 71 of the conductive strip 7 is in a convex arc shape. The bottom end 71 of the conductive strip 7 is in a convex arc shape, and when the end cover 4 is fixed to the bottom end of the contoured wax tube 1, regardless of whether the angle is deviated, it can ensure contact and conduction with the bottom end 71 of the conductive strip 7, thereby ensuring the reliability of the electrical connection.
[0040] A preferred solution, the conductive member 41 of this embodiment includes a metal inner cover 411 nested and fixed in the end cover 4, and a spring 412 installed on the center line of the metal inner cover 411 and electrically connected to the metal inner cover 411. The metal inner cover 411 and the spring 412 can be directly contacted and connected, or indirectly connected through a switch structure; when the end cover 4 is combined with the contoured wax tube 1, the bottom end of the conductive strip 7 contacts the metal inner cover 411, and the spring 412 contacts the negative electrode of the dry cell 3. The conductive inner cover contacts the conductive strip 7, which is simpler in structure than the elastic contact method of the existing end cover, and there is no metal fatigue, making the electrical connection more reliable.
[0041] A preferred solution is that the outer periphery of the bottom of the battery compartment 2 of this embodiment is formed with a retaining edge 25 that abuts against the bottom end of the profiling wax tube 1, and a connecting section 26 that extends axially downward beyond the retaining edge 25 and has an external thread, and the end cover 4 has an internal thread 42 that is threadedly matched with the connecting section 26. After the battery compartment 2 can be plugged and matched with the profiling wax tube 1, the retaining edge 25 can ensure the accuracy of the plug-in position; because the end cover 4 is connected to the external thread of the connecting section 26 through the internal thread 42, and the conductive strip 7 is in contact with the metal inner cover 411, the structure is simpler than the existing products of this type, in which the end cover is provided with an external thread, and an elastic contact electrically connected to the conductive ring is provided on the side wall of the external thread.
[0042] In a preferred embodiment, the battery compartment 2 and the profiling wax tube 1 are formed with corresponding axial ribs 27 and assembly grooves 11 so that the two can be plugged in with interference fit along the axial direction. The interference fit between the battery compartment 2 and the profiling wax tube 1 further simplifies the installation of the battery compartment 2.
[0043] A preferred solution, the PCB board 5 of this embodiment has a long strip section 52 extending upward along the axial direction of the shaped wax tube 1, and the pins of the LED lamp 6 are welded to the top of the long strip section 52. The PCB board 5 extends out of the long strip section 52, and the pins of the LED lamp 6 are welded to the top of the long strip section 52. On the one hand, it is unnecessary to connect the LED lamp 6 and the PCB board 5 through wires, which simplifies the assembly and improves the reliability of the electrical connection. On the other hand, during assembly, the LED lamp 6, the LCB board and the battery compartment 2 are assembled into an integrated structure, which only needs to be inserted into the shaped wax tube 1 from the bottom, so that the LED lamp 6 extends from the top of the shaped wax tube 1. Compared with the existing wire connection method, it greatly simplifies the assembly and improves the reliability of the structure.
[0044] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. An improved long-stem electronic candle, characterized in that: The invention comprises an elongated cylindrical profiling wax tube of an integral structure, a cylindrical battery compartment which is inserted and fixed to the lower section of the profiling wax tube, a dry battery installed in the battery compartment along the axial direction, an end cover which is detachably fixed to the bottom end of the profiling wax tube, a PCB board which is axially arranged in the profiling wax tube and fixed to the top end of the battery compartment, and an LED lamp which is electrically connected to the PCB board and extends upward from the top end of the profiling wax tube; the top end of the battery compartment has an integrally formed top plate, and the center of the top plate has a hole for the positive electrode of the dry battery to extend upward. A through hole is formed on the top plate, and a fixing groove for plugging and fixing the PCB board is formed on the top plate, the bottom edge of the PCB board has a positive contact that contacts the positive electrode of the dry battery, and one side edge of the PCB board has a negative contact, a conductive member that contacts and conducts with the negative electrode of the dry battery is fixed in the end cover, and the wall of the battery compartment or the contoured wax tube is also provided with an axial slot, and a conductive strip is inserted in the slot. After assembly, the upper end of the conductive strip is in contact with the negative contact, and the lower end is in contact with the conductive member.
2. The improved structure of the long-stem electronic candle according to claim 1 is characterized in that: The dry cell comprises two cells connected in series along the axial direction.
3. The improved structure of the long-stem electronic candle according to claim 1 is characterized in that: The slot is formed on the inner wall of the battery compartment and penetrates axially; the slot has a constricted cross-section, so that the conductive strip is confined in the slot.
4. The improved structure of the long-stem electronic candle according to claim 3 is characterized in that: The top end of the slot corresponds to one end of the interior of the fixing slot along the length direction, so that the upper end of the conductive strip extends out of the slot and fits against an inner wall of one end of the fixing slot.
5. The improved structure of the long-stem electronic candle according to claim 4 is characterized in that: The width of the upper end of the conductive strip extending out of the top of the slot is narrower than the rest of the slot, and the hole of the slot passing through the top plate is adapted to the width of the upper end of the conductive strip, so that the top of the slot forms a limiting step for axially limiting the conductive strip.
6. The improved structure of the long-stem electronic candle according to claim 3 is characterized by: The bottom end of the conductive strip exceeds the bottom end of the battery compartment, and the bottom end of the conductive strip is in a convex arc shape.
7. The improved structure of the long-stem electronic candle according to claim 6, characterized in that: The conductive member includes a metal inner cover nested and fixed in the end cover, and a spring installed on the center line of the metal inner cover and electrically connected thereto. When the end cover is combined with the contoured wax tube, the bottom end of the conductive strip contacts the metal inner cover, and the spring contacts the negative pole of the dry cell.
8. The improved structure of the long-stem electronic candle according to claim 1 is characterized by: The outer periphery of the bottom of the battery compartment is formed with a retaining edge that abuts against the bottom end of the contoured wax tube, and a connecting section that extends axially downward beyond the retaining edge and has an external thread, and the end cover has an internal thread that matches the thread of the connecting section.
9. The improved structure of the long-stem electronic candle according to claim 8, characterized in that: Corresponding axial ribs and assembly grooves are formed between the battery compartment and the contoured wax tube so that the two can be plugged in with interference fit along the axial direction.
10. The improved structure of the long-stem electronic candle according to claim 1, characterized in that: The PCB board has a long strip section extending upward along the axial direction of the shaped wax tube, and the pins of the LED lamp are welded to the top of the long strip section.