A down lamp with convenient construction and assembly

Abstract

The application discloses a down lamp which is convenient to assemble, which comprises a lamp holder assembly, positive and negative electric connection terminals arranged on the lamp holder assembly, a connector which is detachably connected to the lamp holder assembly, the connector comprising a connecting seat, at least two groups of negative contact assemblies which are slidably connected to the connecting seat, and a positive contact piece which is fixedly connected to the end of the connecting seat, and a light source assembly which is fixedly connected to the connector. The down lamp adopts the connector to realize detachable connection of the lamp holder assembly and the light source assembly, reduces wiring and construction difficulty, and improves installation efficiency. The connector adopts the combined structure of the connecting seat and the negative contact assembly, the negative contact assembly adopts a sliding piece, an elastic locking module embedded in the sliding piece, and a sliding guide structure with the connecting seat, and further realizes stable and reliable electric connection of the connector and the lamp holder assembly.

Description

Technical Field

[0001] This invention relates to the field of lighting fixtures, and more particularly to a downlight that is easy to install and assemble. Background Technology

[0002] Lighting fixtures are widely used in residences, shopping malls, hotels, airports, train stations, and museums. Through the design of light color and angle, they can achieve both illumination functions and strong visual decorative effects. For example, ceiling lights are a common type of ceiling lighting fixture, characterized by their small size, low energy consumption, and flexible installation and distribution design. Currently, ceiling lights generally employ two installation structure designs: one is to connect to pre-drilled holes in the ceiling using elastic clips, and the other is to connect to an external track.

[0003] The lamp holder and light source components of the aforementioned ceiling lights are generally integrated structures, such as common downlight products. During installation, the wires need to be connected to the terminals of the downlight first, and then the wires are snapped into the pre-drilled holes in the ceiling. When connecting the wires, one hand needs to be freed to hold the downlight, and the operation is extremely inconvenient as it is done in the air close to the ceiling.

[0004] Based on the above needs, there is an urgent need to develop a structure that allows the base and light source components of downlights to be separated, so that the light source and lamp holder can be separated during assembly, reducing wiring difficulty and improving installation convenience and construction efficiency. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a downlight that is convenient for construction and assembly, so as to solve the technical problem of inconvenient wiring and installation of existing lamps.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An embodiment of the present invention provides a downlight that is convenient for construction and assembly, comprising:

[0008] A lamp holder assembly, wherein the lamp holder assembly is provided with a positive electrical connection terminal and a negative electrical connection terminal;

[0009] A connector, detachably connected to the lamp holder assembly, the connector including a connector base, at least two sets of negative contact components slidably connected to the connector base, and a positive contact component fixedly connected to an end of the connector base; and

[0010] A light source assembly, wherein the light source assembly is fixedly connected to the connector;

[0011] The negative contact assembly includes a slider, a first elastic element connected to the end of the slider, and an elastic locking module embedded in the slider. The slider can slide axially relative to the connector and simultaneously compress or stretch the first elastic element. When the first elastic element is stretched, the slider expands radially outward relative to the connector, so that the slider abuts against the negative electrical connection terminal to form a negative circuit for powering the light source assembly. The positive contact abuts against the positive electrical connection terminal to form a positive circuit for powering the light source assembly. Simultaneously, the elastic locking module elastically engages the connector with the lamp holder assembly.

[0012] The connecting seat includes a columnar body, and the side wall of the columnar body is provided with the same number of guide grooves as the negative electrode contact assembly. The sliding member is slidably connected to the guide groove, and when the sliding member slides along the guide groove, it synchronously shrinks or expands radially relative to the central axis of the columnar body.

[0013] The bottom of the guide groove is an inclined plane that forms an angle with the central axis of the columnar body. The sliding member has a bottom inclined surface that abuts against the inclined plane and a top arc surface that is opposite to the bottom inclined surface and parallel to the central axis of the columnar body.

[0014] The guide groove has a T-shaped cross-section, and the bottom outer side of the sliding member has a guide portion that matches the T-shaped groove.

[0015] The elastic locking module includes a second elastic element and a ball disposed at the end of the second elastic element. The sliding element has a mounting hole for embedding the second elastic element, and no more than half of the ball is exposed through the opening at one end of the mounting hole.

[0016] The length direction of the mounting hole is set at an angle to the central axis of the columnar body, so that the second elastic element is inclined relative to the central axis of the columnar body. When the connector is inserted into the lamp holder assembly, the ball is driven by the lamp holder assembly, first moving along the mounting hole to synchronously compress the second elastic element, and then resetting under the elastic force of the second elastic element to lock into the lamp holder assembly.

[0017] The lamp holder assembly includes: a lamp holder, at least two elastic snap-fit ​​members connected to the outer wall of the lamp holder, a plug-in groove provided inside the lamp holder, a positive electrical connection terminal provided at the bottom of the plug-in groove, and a negative electrical connection terminal provided on the side wall of the plug-in groove.

[0018] The insertion slot is a cylindrical slot, the positive electrical connection terminal is located at the center of the bottom of the cylindrical slot, and the negative electrical connection terminal is an elastic ring surrounding the side wall of the cylindrical slot.

[0019] The connector is also equipped with several heat dissipation fins.

[0020] The light source assembly includes: a lamp tube, and a light source plate, a reflector, and a lens connected inside the lamp tube, wherein the light source plate, the reflector, and the lens are arranged sequentially in front of and behind each other.

[0021] The downlight of the present invention is easy to install and assemble. It uses a connector to realize the detachable connection between the lamp holder assembly and the light source assembly, which reduces the wiring and construction difficulty and improves the installation efficiency. The connector adopts a combination structure of a connecting seat and a negative contact assembly. The negative contact assembly adopts a sliding member, an elastic locking module embedded in the sliding member, and a sliding guide structure with the connecting seat, which further realizes a stable and reliable electrical connection between the machine and the lamp holder assembly.

[0022] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are described in detail below. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the downlight, which is designed for easy construction and assembly according to an embodiment of the present invention.

[0024] Figure 2 This is a schematic diagram of the lamp holder assembly, connector, and light source assembly of a downlight designed for convenient construction and assembly according to an embodiment of the present invention, in a separated state.

[0025] Figure 3 An exploded view of a downlight designed for easy construction and assembly according to an embodiment of the present invention;

[0026] Figure 4 and Figure 5 Schematic diagrams of the connector portion of the downlight, which facilitates construction and assembly according to an embodiment of the present invention, from different perspectives;

[0027] Figure 6 This is a schematic diagram of the lamp holder assembly of a downlight that is convenient for construction and assembly according to an embodiment of the present invention;

[0028] Figure 7 This is a schematic diagram of the connecting bracket portion of the downlight, which facilitates construction and assembly according to an embodiment of the present invention.

[0029] Figure 8This is a schematic diagram of the sliding component of a downlight designed for easy construction and assembly according to an embodiment of the present invention.

[0030] Figure 9 This is an overall side view of a downlight designed for easy construction and assembly according to an embodiment of the present invention;

[0031] Figure 10 for Figure 9 The sectional view shown is along line AA.

[0032] Figure 11 for Figure 10 The diagram shows a magnified view of part A.

[0033] Explanation of reference numerals in the attached figures:

[0034] The components include: a downlight 100 for easy construction and assembly; a lamp holder assembly 1; a lamp holder 11; a plug slot 111; a negative electrical connection terminal 112; a positive electrical connection terminal 113; a flexible snap-fit ​​component 12; a light source assembly 2; a lamp barrel 21; a light source board 22; a reflector cup 23; a lens 24; a connector 3; a negative contact assembly 30; a front end 301; a rear end 302; a connecting seat 31; a columnar body 311; a positive contact component 312; a guide groove 313; an opening structure 3131; a guide rail groove 3132; a sliding component 32; a wedge-shaped body 321; a mounting hole 3211; an opening 3212; a top arc surface 3213; a bottom bevel surface 3214; a guide part 322; a second elastic component 33; a ball bearing 34; a nut screw 35; a first elastic component 36; an elastic locking module 310; and a central axis L. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral molding; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. The illustrative expressions of the above terms in this specification should not be construed as necessarily referring to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] Lighting fixtures are widely used in residences, shopping malls, hotels, airports, train stations, and museums. Through the design of light color and angle, they can achieve both illumination functions and strong visual decorative effects. Ceiling lights are a common type of ceiling lighting fixture, characterized by their small size, low energy consumption, and flexible installation and distribution design. Existing ceiling lights generally employ two installation structures: one uses elastic clips to connect to pre-drilled holes in the ceiling, and the other uses an external track to connect to the light fixture track. The lamp holder and light source components of these ceiling lights are generally integrated structures, such as common downlights. During installation, the wires need to be connected to the downlight's terminals first, and then clipped into the pre-drilled holes in the ceiling. Connecting the wires requires holding the downlight with one hand and working close to the ceiling, making the operation extremely inconvenient. To solve these problems, this embodiment discloses a downlight 100 that is easy to install and assemble.

[0043] Please see Figures 1 to 11 This embodiment provides a downlight 100 that is easy to install and construct. The downlight 100 with a quick connector includes a lamp holder assembly 1, a connector 3, and a light source assembly 2. The connector 3 is used to detachably connect the lamp holder assembly 1 and the light source assembly 2. When it is installed on the ceiling or track, the lamp holder assembly 1 is assembled to the ceiling or track, and then the light source assembly 2 is quickly assembled to the lamp holder assembly 1 through the connector 3. During installation, the lamp holder assembly 1 is first wired and fixed to the ceiling or track, and then the light source assembly 2 is connected to the lamp holder assembly 1 through the connector 3, so as to achieve separate and independent installation.

[0044] Specifically, the downlight 100 with a quick connector includes:

[0045] Lamp holder assembly 1, wherein the lamp holder assembly 1 is provided with a positive electrical connection terminal 113 and a negative electrical connection terminal 112;

[0046] Connector 3, detachably connected to the lamp holder assembly 1, includes a connector 31, at least two sets of negative contact assemblies 30 slidably connected to the connector 31, and a positive contact 312 fixedly connected to the end of the connector 31; and

[0047] Light source assembly 2, which is fixedly connected to the connector 3.

[0048] The negative electrode contact assembly 30 includes a slider 32, a first elastic element 36 connected to the end of the slider 32, and an elastic locking module 310 embedded in the slider 32. The slider 32 is axial relative to the connecting seat 31 (axial direction refers to...). Figure 5 The sliding member 32 slides (in the direction of the arrow shown) and simultaneously compresses or stretches the first elastic member 36. When the first elastic member 36 is in a stretched (or natural) state, the sliding member 32 expands outward relative to the connecting seat 31 in its radial direction (perpendicular to the arrow in the figure), so that the sliding member 32 abuts against the negative electrical connection terminal 112 to form a negative circuit for powering the light source assembly 2, and the positive contact member 312 abuts against the positive electrical connection terminal 113 to form a positive circuit for powering the light source assembly 2. Simultaneously, the elastic locking module 310 elastically engages the connector 3 with the lamp holder assembly 1, so that the lamp holder assembly 1, the light source assembly 2, and the connector 3 are in a stable connection state.

[0049] In this embodiment, the connector 3 of the downlight 100 with a quick connector has the following functional characteristics: the slider 32 can slide axially relative to the connecting seat 31. Therefore, during the process of connecting the connector 3 to the lamp holder assembly 1, the slider 32 will be axially moved by the external force generated by the lamp holder assembly 1. Two or more sets of negative contact components 30 will first retract radially along the connecting seat 31, so that the connector 3 can be smoothly inserted into the lamp holder assembly 1. During this process, the slider 32 retracts, which can reduce assembly resistance. At the same time, the slider 32 also has the function of a movable electrical connection terminal. Obviously, the slider 32 is made of conductive material. After the connector 3 and the lamp holder assembly 1 are assembled, it abuts against each other to form a negative power supply circuit. After the connector 3 and the lamp holder assembly 1 are assembled, the sliding member 32 automatically resets under the reaction force of the first elastic member 36. After resetting, the two or more sets of the above-mentioned negative contact components 30 expand radially outward along the connecting seat 31. On the one hand, they can dynamically and tightly abut against the negative electrical connection terminal 112 on the lamp holder assembly 1. On the other hand, due to their radially outward expansion, they can also provide a locking assistance function for the connection between the connector 3 and the lamp holder assembly 1. After the sliding member 32 is reset by the reverse push of the first elastic member 36, the elastic locking module 310 follows the sliding member 32 and expands radially outward along the connecting seat 31, so that it elastically locks against the lamp holder assembly 1.

[0050] As can be seen from the structure of the downlight 100 with quick connector in this embodiment, the lamp holder assembly 1 can be separated from the light source assembly 2 as an independent functional module. During installation, the lamp holder assembly 1 is first connected to the positive and negative wires of the mains power. The lamp holder assembly 1 is lightweight and easy for construction personnel to handle. Then, the light source assembly 2 is connected to the lamp holder assembly 1 through the connector 3. The connector 3 and the lamp holder assembly 1 have a contact-type electrical connection structure without complicated wire connections. Its assembly and construction are simple and efficient.

[0051] Please refer to it again. Figure 7 The connecting seat 31 includes a columnar body 311. The side wall of the columnar body 311 is provided with the same number of guide grooves 313 as the negative electrode contact assembly 30. The sliding member 32 is slidably connected to the guide groove 313. When the sliding member 32 slides along the guide groove 313, it synchronously shrinks or expands radially relative to the central axis L of the columnar body 311.

[0052] Please refer to it again. Figure 5 The connector 3 has a front end 301 and a rear end 302, that is, the connector 31 has a front end 301 and a rear end 302. When the sliding member 32 slides from the rear end 302 to the front end 301 of the connector 31, the sliding member 32 simultaneously moves towards the central axis L of the columnar body 311, reducing the insertion resistance between the connector 31 and the insertion groove 111 of the lamp holder 11, so as to smoothly insert with the lamp holder assembly 1. Conversely, when the sliding member 32 moves from the front end 301 to the rear end 302, the sliding member 32 simultaneously expands radially outward relative to the columnar body 311, so that the outer wall of the sliding member 32 tightly abuts against the negative electrical connection terminal 112, and a radial abutment force is generated between the two.

[0053] For specific details, please refer to... Figure 8 The columnar body 311 is cylindrical, and the bottom of the guide groove 313 is an inclined plane (not parallel) that forms an angle with the central axis L of the columnar body 311. The sliding member 32 has a bottom inclined surface 3214 that abuts against the inclined plane, and a top arc surface 3213 that is parallel to the central axis L of the columnar body 311 and opposite to the bottom inclined surface 3214. That is, from the longitudinal section of the sliding member 32, its cross-section is a right trapezoid, which gradually widens from the top arc surface 3213 to the bottom inclined surface 3214.

[0054] Please combine again Figure 11 Since the bottom of the guide groove 313 is an inclined plane, and the bottom of the corresponding sliding member 32 is a bottom inclined surface 3214, during the sliding process of the sliding member 32 from the front end 301 to the rear end 302, the two achieve synchronous radial inward or outward contraction relative to the connecting seat 31 during the axial movement of the connecting seat 31 through the inclined surface cooperation structure.

[0055] In this embodiment, the guide groove 313 is a through groove recessed from its front end 301 to its rear end 302. The corresponding sliding member 32 is also a long strip structure. Therefore, its top arc surface 3213 is relatively long. The relatively long top arc surface 3213 can form a depth direction (i.e. axial) abutment effect with the inner wall of the insertion groove 111 of the lamp holder 11 of the lamp holder assembly 1, so that a stable and reliable connection is formed between the connecting seat 31 and the lamp holder 11, thereby enabling the negative electrode contact assembly 30 to be reliably electrically connected to the negative electrode electrical connection terminal 112.

[0056] like Figure 7 and Figure 8 As shown, the guide groove 313 has a T-shaped cross-section, and the bottom outer side of the slider 32 extends a guide portion 322 that mates with the T-shaped groove. That is, the bottom of the guide groove 313 also extends outward along its length with a guide rail groove 3132, into which the guide portion 322 is inserted. The top of the guide groove 313 is an open structure 3131, through which the top arc surface 3213 of the slider 32 extends to abut against the negative electrical connection terminal 112. The fitting structure of the guide groove 313 and the slider 32 in this embodiment simplifies processing and assembly. During assembly, the slider 32 is simply inserted into the wide end of the guide groove 313, and radial positioning is achieved between the slider 32 and the guide groove 313 through the guide portion 322 and the guide rail groove 3132.

[0057] The sliding member 32 includes a wedge-shaped body 321, which has a mounting hole 3211. One end of the mounting hole 3211 extends from the top arc surface 3213 to the top arc surface 3213, and the other end extends to the front end of the wedge-shaped body 321. A guide portion 322 extends outward from the long outward side of the wedge-shaped body 321 near the bottom slope 3214.

[0058] It should be noted that, in this embodiment, the two or more sets of negative electrode contact components 30 of the downlight 100, which is convenient for construction and assembly, are evenly distributed with the central axis L of the connecting seat 31 as a cylindrical surface.

[0059] Please refer to it again. Figures 3 to 5 as well as Figure 11 The elastic locking module 310 includes a second elastic element 33 and a ball bearing 34 disposed at the end of the second elastic element 33. The sliding member 32 has a mounting hole 3211 for embedding the second elastic element 33. No more than half of the ball bearing 34 protrudes from one end opening 3212 of the mounting hole 3211. That is, only a small hemisphere of the ball bearing 34 protrudes from the opening 3212, so the ball bearing 34 can roll within the opening 3212 but will not come out of the opening 3212, and the opening 3212 is close to the rear end 302 of the connecting seat 31.

[0060] The mounting hole 3211 is angled to the central axis L of the columnar body 311, causing the second elastic member 33 to be inclined relative to the central axis L of the columnar body 311. When the connector 3 is inserted into the lamp holder assembly 1, the ball bearing 34 is driven by the lamp holder assembly 1, first moving along the mounting hole 3211 to synchronously compress the second elastic member 33, and then resetting under the elastic force of the second elastic member 33 to engage with the insertion slot 111 of the lamp holder 11 of the lamp holder assembly 1. That is, the inclination direction of the second elastic member 33 is approximately the same as the bottom inclined surface 3214 of the sliding member 32, and the two can be set to be parallel to each other. To fix the second elastic member 33 in the mounting hole 3211, one end is fixed by a nut screw 35 screwed into the mounting hole 3211, and the other end is limited by the ball bearing 34.

[0061] When the connector 3's connector base 31 is inserted into the lamp holder assembly 1, the lamp holder assembly 1 simultaneously abuts against the ball 34. Under pressure, the ball 34 compresses the second elastic element 33, allowing it to move towards the front end 301. Since the second elastic element 33 is inclined, the ball 34 moves axially towards the central axis L of the connector base 31, thus reducing the assembly resistance between the connector 3 and the lamp holder assembly 1. After the connector 3 and the lamp holder assembly 1 are assembled, the ball 34 resets under the restoring force of the second elastic element 33 (i.e., moves towards the rear end 302). Simultaneously, the ball 34 expands outward relative to the central axis L of the connector base 31, thus tightly abutting against the inner wall of the insertion groove 111 of the lamp holder 11.

[0062] Please refer to it again. Figure 1 , Figure 2 as well as Figure 6 The lamp holder assembly 1 includes: a lamp holder 11, at least two elastic snap-fit ​​members 12 connected to the outer wall of the lamp holder 11, a plug-in groove 111 provided in the lamp holder 11, a positive electrical connection terminal 113 provided at the bottom of the plug-in groove 111, and a negative electrical connection terminal 112 provided on the side wall of the plug-in groove 111. When the connector 3 is connected to the lamp holder assembly 1, the connector 31 is inserted into the plug-in groove 111 of the lamp holder 11.

[0063] In this embodiment, the insertion slot 111 is a cylindrical slot, the positive electrical connection terminal 113 is located at the center of the bottom of the cylindrical slot, and the negative electrical connection terminal 112 is an elastic ring surrounding the side wall of the cylindrical slot. Both the insertion slot 111 and the cylindrical body 311 of the connector 31 are mutually mating cylindrical structures; therefore, when they are inserted, there is no need to rotate to a set angle, only a butt joint insertion is required.

[0064] It should be noted that in this embodiment, either the positive electrical connection terminal 113 or the positive contact 312 is a flexible electrical connection terminal, or both are flexible electrical connection terminals, such as spring pins, so that the two are always in contact after assembly, ensuring the stability of the electrical connection.

[0065] Furthermore, the connector 31 is also provided with several heat dissipation fins (not shown in the figure). These heat dissipation fins are used to improve the overall heat dissipation performance of the connector 31, so as to release the heat generated by the light source assembly 2 that abuts against the connector 31 to the outside, thereby improving the service life of the light source assembly 2. The connector 31 can be made of a material with high heat dissipation properties, such as aluminum.

[0066] The first elastic member 36 and the second elastic member 33 mentioned above are both elastic columnar members such as springs. One end of the first elastic member 36 is fixedly connected to one end of the sliding member 32, and the other end abuts against the bottom wall of the insertion groove 111 of the lamp holder 11.

[0067] like Figure 10 As shown, the light source assembly 2 includes: a lamp tube 21, and a light source plate 22, a reflector 23, and a lens 24 connected within the lamp tube 21. The light source plate 22, the reflector 23, and the lens 24 are arranged sequentially front to back. The back side of the light source plate 22 abuts against the end face of the rear end 302 of the connecting seat 31 to facilitate heat transfer and dissipation.

[0068] The downlight 100 of this embodiment, which is convenient for construction and assembly, uses a connector 3 to realize the detachable connection between the lamp holder assembly 1 and the light source assembly 2, which reduces the wiring and construction difficulty and improves the installation efficiency. The connector 3 adopts a combination structure of a connecting seat 31 and a negative contact assembly 30. The negative contact assembly 30 adopts a sliding member 32, an elastic locking module 310 embedded in the sliding member 32, and a sliding guide structure with the connecting seat 31, which further realizes a stable and reliable electrical connection between the connector 3 and the lamp holder assembly 1.

[0069] The above examples are merely illustrative of the technical content of the present invention to facilitate easier understanding by the reader, but do not imply that the implementation of the present invention is limited to these examples. Any technical extensions or re-creations made based on the present invention are protected by the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. A downlight that is easy to assemble and install, characterized in that, include: A lamp holder assembly, wherein the lamp holder assembly is provided with a positive electrical connection terminal and a negative electrical connection terminal; A connector, detachably connected to the lamp holder assembly, the connector including a connector base, at least two sets of negative contact components slidably connected to the connector base, and a positive contact component fixedly connected to an end of the connector base; and A light source assembly, wherein the light source assembly is fixedly connected to the connector; The negative contact assembly includes a slider, a first elastic element connected to the end of the slider, and an elastic locking module embedded in the slider. The slider can slide axially relative to the connector and simultaneously compress or stretch the first elastic element. When the first elastic element is stretched, the slider expands radially outward relative to the connector, so that the slider abuts against the negative electrical connection terminal to form a negative circuit for powering the light source assembly. The positive contact abuts against the positive electrical connection terminal to form a positive circuit for powering the light source assembly. Simultaneously, the elastic locking module elastically engages the connector with the lamp holder assembly. The connector includes a columnar body, and the sidewall of the columnar body has the same number of guide grooves as the negative contact assembly. The slider is slidably connected to the guide grooves, and when the slider slides along the guide grooves, it simultaneously contracts or expands radially relative to the central axis of the columnar body.

2. The downlight with convenient construction and assembly according to claim 1, characterized in that, The bottom of the guide groove is an inclined plane that forms an angle with the central axis of the columnar body. The sliding member has a bottom inclined surface that abuts against the inclined plane and a top arc surface that is opposite to the bottom inclined surface and parallel to the central axis of the columnar body.

3. The downlight with convenient construction and assembly according to claim 2, characterized in that, The guide groove has a T-shaped cross-section, and the bottom outer side of the sliding member has a guide portion that matches the T-shaped groove.

4. The downlight with convenient construction and assembly according to any one of claims 1 to 3, characterized in that, The elastic locking module includes: a second elastic element and a ball disposed at the end of the second elastic element. The sliding element has a mounting hole for embedding the second elastic element, and no more than half of the ball is exposed through the opening at one end of the mounting hole.

5. The downlight with convenient construction and assembly according to claim 4, characterized in that, The length direction of the mounting hole is set at an angle to the central axis of the columnar body, so that the second elastic member is inclined relative to the central axis of the columnar body; when the connector is inserted into the lamp holder assembly, the ball is driven by the lamp holder assembly, first moves along the mounting hole to synchronously compress the second elastic member, and then resets under the elastic force of the second elastic member to snap into the lamp holder assembly.

6. The downlight with convenient construction and assembly according to claim 5, characterized in that, The lamp holder assembly includes: a lamp holder, at least two elastic snap-fit ​​members connected to the outer wall of the lamp holder, a plug-in groove provided inside the lamp holder, a positive electrical connection terminal provided at the bottom of the plug-in groove, and a negative electrical connection terminal provided on the inner side wall of the plug-in groove.

7. The downlight with convenient construction and assembly according to claim 6, characterized in that, The insertion slot is a cylindrical slot, the positive electrical connection terminal is located at the bottom center of the cylindrical slot, and the negative electrical connection terminal is an elastic ring surrounding the inner wall of the cylindrical slot.

8. The downlight with convenient construction and assembly according to claim 7, characterized in that, The connector is also equipped with several heat dissipation fins.

9. The downlight with convenient construction and assembly according to claim 8, characterized in that, The light source assembly includes: a lamp tube, and a light source plate, a reflector, and a lens connected inside the lamp tube, wherein the light source plate, the reflector, and the lens are arranged sequentially in front of and behind each other.

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