WO2022267921A1

WO2022267921A1 - Junction box, fixing base, and lamp fixing device

Info

Publication number: WO2022267921A1
Application number: PCT/CN2022/098414
Authority: WO
Inventors: 李英; 闫磊
Original assignee: 苏州欧普照明有限公司; 欧普照明股份有限公司
Priority date: 2021-06-25
Filing date: 2022-06-13
Publication date: 2022-12-29
Also published as: CN214840686U

Abstract

A junction box (100), a fixing base (200), and a lamp fixing device (400), relating to the technical field of illumination. The junction box (100) comprises a housing (110), a wiring terminal (120), and a wire pressing elastic sheet (130); the housing (110) is provided with a wire inlet (111); the wiring terminal (120) and the wire pressing elastic sheet (130) are located in the housing (110), and a wire clamping space is formed between the wiring terminal and the wire pressing elastic sheet; and with respect to the wiring terminal (120), the wire pressing elastic sheet (130) is disposed close to the wire inlet (111). In the junction box (100), a connecting plate (123) of the wiring terminal (120) is provided with a plugging space (1231) and a hanging supporting portion (1232) adjacent to the plugging space, a fixing portion (132) of the wire pressing elastic sheet (130) comprises a hanging portion (1321), and the hanging portion (1321) can be inserted into the plugging space from one side of the wire inlet (111) and is hooked on the hanging supporting portion (1232). Therefore, the fixing portion (132) of the wire pressing elastic sheet (130) can be at least partially supported by the wiring terminal (120), and thus the problem that the stress of the housing (110) is concentrated when the wire pressing elastic sheet (130) is stressed due to the fact that the fixing portion is completely supported by the housing (110) is avoided.

Description

Junction box, fixing seat, lamp fixing device

technical field

The invention relates to the field of lighting technology, in particular to a junction box, a fixing seat and a lamp fixing device.

Background technique

On the fixing seat of the lighting device, a junction box for connecting to the mains is usually arranged.

At present, the junction box includes a housing and a wire clamping space located on one side of the housing. The wire clamping space is formed by the terminal in the housing and the wire crimping shrapnel on the inner side of the housing, and is used for clamping external wires. , to realize the electrical connection between the external wire and the terminal in the junction box.

Specifically, the crimping shrapnel has a free part and a fixed part, and the free part approaches or moves away from the terminal under the action of an external force, thereby making the wire clamping space larger or smaller, so as to facilitate the insertion or clamping of the external wire. At present, the fixed part of the crimping shrapnel is completely supported by the casing of the junction box. When the free part of the crimping shrapnel is deformed by force, the fixing part exerts a large and concentrated pressure on the casing of the junction box, causing the junction box to easily shake. and unable to maintain balance.

Contents of the invention

In order to solve the problem that the fixed part of the wiring spring in the junction box is completely supported by the housing, resulting in the concentration of force on the housing when the pressing spring is stressed, the present invention provides a junction box, in which the fixed part of the wiring spring inside the junction box is not It is completely supported by the shell, which solves the problem of concentrated force on the shell when the wire crimping shrapnel is stressed, and provides a fixing seat and a lamp fixing device with the junction box.

In a first aspect, the present invention provides a junction box, including: a housing, a terminal and a wire crimping elastic piece, the housing has a wire inlet, the connecting terminal and the wire crimping elastic piece are located in the housing and two A wire clamping space is formed between them, and relative to the terminal, the wire-pressing shrapnel is arranged close to the wire inlet;

The connecting terminal has a wire abutting portion and a mounting portion that are oppositely arranged, and a connecting plate, the connecting plate connects the bottom connecting portion of the wire and the mounting portion, the mounting portion is attached to the housing, and the connection The board is provided with an adjacent plug-in space and a hooking support part, the plug-in space runs through the connecting plate, and the hooking support part is set away from the wire abutting part and close to the installation part;

The wire crimping elastic piece has a free part and a fixed part. Relative to the fixed part, the free part is close to the wire abutment part and forms the wire clamping space between the wire abutment part and the wire abutment part. The part includes a hooking part, and the hooking part is supported by the hooking support part after passing through the insertion space from one side of the wire inlet.

In the above-mentioned junction box, the wire abutting portion is located on the side of the connecting plate facing away from the wire inlet, and the free portion partially penetrates the insertion space and abuts against the wire abutting portion under normal conditions , the wire clamping space is formed by the free portion and the wire abutting portion.

In the above-mentioned junction box, the installation part includes a installation surface, and the installation surface is attached to the inner wall of the housing and faces away from the contact part of the wire; the housing has a pressing port and a pressing member, and the pressing port Through the inside and outside of the housing, the pressing member is movably arranged on the pressing port along the axial direction of the pressing port, and the pressing member and the pressing port are arranged facing away from the installation surface; relative to the fixed part, The free portion is disposed close to the pressing port; the pressing member abuts against the free portion and penetrates into the housing under the action of an external force to drive the free portion away from the wire abutting portion.

In the above-mentioned junction box, the axis of the wire inlet and the axis of the pressing port are perpendicular to each other; the wire crimping elastic piece also includes a base, and the base includes a circular arc bending area, a first transition area and a second transition area , the first transition area is connected between the arc bending area and the fixed part, and the second transition area is connected between the free parts of the arc bending area; the first The transition area is arranged opposite to the second transition area, and the extension surfaces of the first transition area, the second transition area, and the free portion are all inclined, and from the installation portion to the pressing port, the The first transition zone, the second transition zone and the free portion are gradually away from the wall where the wire inlet is located.

In the above junction box, the connection plate is arranged obliquely relative to the installation surface in the housing, and the connection plate gradually approaches the wall surface where the wire inlet is located from the installation part to the direction of the pressing opening.

In the junction box above, the connecting terminal further includes a positioning portion, and the positioning portion extends from the wire abutting portion toward the wall where the wire inlet is located, and abuts against the inner wall of the housing.

In the above junction box, the junction box includes at least two of the connection terminals arranged side by side, and the connection direction of at least two of the connection terminals is the width direction;

The free part includes a thin and narrow area and a thick and wide area. Relative to the thin and narrow area, the thick and wide area is arranged close to the wire inlet and away from the wire abutment part, and the thin and narrow area penetrates into the In the insertion space, the thick and wide area limits the penetration depth of the thin and narrow area, and is located outside the insertion space and is driven by external force to deform the free part. The extension surface of the thick and wide area parallel to the axial direction of the inlet;

The width dimension of the positioning portion is smaller than the width dimension of the thick region; the pressing member has a pressing foot extending toward the free portion, and the pressing foot extends toward the free portion and abuts against the thick wide area and keep a distance from the positioning abutment part.

In the junction box above, the width dimension of the positioning portion is equal to the width dimension of the plugging space; or, the outer dimension of the positioning portion is equal to or smaller than the outer dimension of the plugging space.

In the above junction box, the terminal further includes a coupling portion and a strain portion, the strain portion connects the mounting portion and the coupling portion, and the strain portion extends from the mounting portion in a direction away from the mounting surface .

In the above-mentioned junction box, the connection terminal is integrally provided or integrally formed by a conductive elastic material; the installation part includes a circuit board, and the strain part and the connection board are electrically connected through the circuit board.

In the above junction box, the terminal further includes an elastic reinforcement part connected between the strain part and the installation part, and the elastic reinforcement part is used to improve the strain capacity of the strain part.

In the above-mentioned junction box, the installation surface of each of the connecting terminals includes at least two positioning holes, and positioning pieces are arranged in the housing; the at least two positioning holes and the corresponding at least two positioning pieces have error-proof design.

In the above-mentioned junction box, the housing has a butt plate, the pressing port is arranged on the butt plate; at least two mutually insulated receiving grooves are arranged on the butt plate, and the receiving grooves pass through the housing Inside and outside, the coupling parts of the at least two connection terminals are respectively arranged in the at least two receiving grooves.

In the above junction box, the housing further includes a side wall, and the extension surface of the side wall is perpendicular to the installation surface; the junction box further includes a first detachable connection part, and the first detachable connection part is along the extending circumferentially and surrounding the side wall, for detachably mounting the housing on a target object.

In the above junction box, the first detachable connection part includes an extension part and a notch, the extension part extends from the side wall in a direction away from the inner wall of the housing, and the notch runs through the the extension.

In the above-mentioned junction box, the first detachable connection part further includes a slope guide area and a fastening area, the slope guide area is adjacent to the notch in the circumferential direction, and the fastening area is adjacent to the slope guide area Smooth engagement in the circumferential direction.

In the junction box above, the housing further includes a mounting plate, the mounting plate is arranged opposite to the pressing port, and the extension surface of the installation plate is perpendicular to the extension surface of the side wall; the installation plate includes a corresponding An inner surface and an outer surface are disposed on the back, the inner surface is attached to the installation surface, and the outer surface is far away from the pressing port relative to the first detachable connection part.

In a second aspect, the present invention provides a fixing seat, comprising a first main body, and the junction box as described in any one of the above items, the junction box is connected to the first main body.

In the above-mentioned fixing seat, the fixing seat includes a first side wall, the first side wall extends in the axial direction and surrounds the first main body part, and forms an accommodation cavity surrounding the first main body part, and the accommodation cavity Used to accommodate the junction box.

In the above-mentioned fixed seat, the first main body part includes a second detachable connection part, and the second detachable connection part is adapted to be detachably connected to the first detachable connection part.

In the above-mentioned fixed seat, the second detachable connection part includes a bottom end and claws, the bottom end extends radially, and the claws are arranged along the circumference of a rotating shaft, opposite to the bottom end part, the claw is arranged close to the connecting seat, a clamping gap is formed between the claw and the bottom end, and the clamping gap is suitable for clamping the fastening area of the junction box, the After the claw is aligned with the notch of the first detachable connection part, it rotates relatively around the rotation axis, and the fastening area is clamped in the clamping gap.

In the above-mentioned fixed seat, the second detachable connection part further includes a limit baffle, and the limit baffle extends in the axial direction and connects at least two of the claws; the limit baffle is used to surround and Abut against the extension of the first detachable connection part.

In a third aspect, the present invention provides a lamp fixing device, comprising a connecting seat connected to the lamp body and the fixing seat according to any one of the above, the fixing seat is mated and connected with the connecting seat.

In the junction box provided by the present invention, the connecting plate of the connecting terminal has a plug-in space and a hook support part adjacent to the plug-in space, and the fixed part of the crimping shrapnel includes a hook part, and the hook part can be connected from the wire inlet One side of the cable penetrates into the plug-in space and is hooked on the hook support part, so that the fixed part of the wire-pressing shrapnel can be at least partially supported by the terminal, thereby avoiding being completely supported by the shell, causing the shell to press the wire-pressing shrapnel under force. The problem of physical concentration.

Description of drawings

The drawings described here are used to provide a further understanding of the present invention, and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, and do not constitute improper limitations to the present invention. In the attached picture:

FIG. 1 is a schematic structural view of a housing in a junction box provided in Embodiment 1 of the present invention;

Fig. 2 is a schematic structural diagram of the junction box in Fig. 1 after removing the housing part;

3 is an exploded view of the first implementation of the junction box provided in Example 1 of the present invention;

Fig. 4 is a schematic structural view of the terminal block of the junction box in Fig. 3;

Fig. 5 is a schematic structural view of the wire-pressing shrapnel of the junction box in Fig. 3;

FIG. 6 is an exploded view of a second embodiment of the junction box provided in Embodiment 1 of the present invention;

FIG. 7 is an exploded view of a third embodiment of the junction box provided in Embodiment 1 of the present invention;

Fig. 8 is a schematic structural view of the fixing seat in the lamp fixing device provided by Embodiment 2 of the present invention at a viewing angle;

Fig. 9 is an exploded view of the fixing seat at a different viewing angle from Fig. 8;

Fig. 10 is a structural schematic diagram of the fixing seat in Fig. 8 under another different viewing angle;

Fig. 11 is a structural schematic diagram of the lamp fixing device in Fig. 8 after the fixing seat and the connecting seat are mated and connected;

Fig. 12 is a schematic structural view of the connecting seat in Fig. 11;

Fig. 13 is a schematic structural view of the fixing seat and the lamp body assembly in Embodiment 2 of the present invention;

Fig. 14 is an axial sectional view along the rotation axis of the lighting device in Embodiment 2 of the present invention;

Fig. 15 is a schematic view of the structure of the fixing base of the lamp fixing device in Embodiment 3 of the present invention at a viewing angle;

Fig. 16 is a structural schematic view of the fixing seat in Fig. 15 at another viewing angle;

Fig. 17 is a structural schematic diagram of the connecting seat of the lamp fixing device in Embodiment 3 of the present invention at a viewing angle;

Fig. 18 is a schematic structural view of the fixing seat and the lamp body assembly in Embodiment 3 of the present invention;

Fig. 19 is an axial cross-sectional view along the rotation axis of the lighting device in Embodiment 3 of the present invention.

Reference signs:

10 - axis of rotation;

100 - junction box;

110-shell; 111-wire inlet; 112-pressing port; 113-pressing piece; 1131-pressing foot; 114-butting plate; 1141-first storage tank; Groove; 115-side wall of box body; 116-installation plate; 117-first detachable connection part; 1171-extension part; 1172-notch;

120-connecting terminal; 121-wire abutment part; 1211-serrated surface; 122-installation part; 1221-installation surface; 1222-positioning hole; 123-connection plate; 124-positioning part; 125-coupling part; 126-strain part; 127-elastic strengthening part;

130-Crimping shrapnel; 131-First free part; 1311-Narrow area; 1312-Second transition area; 132-First fixed part; 1321-Mounting area; 1322-First transition area; 133-Arc bending area;

200-fixed seat;

210-the first electrical connection part; 211-the electrical shell; 213-the electrical cover; 2131-the second wire hole;

220-the first junction; 221-installation groove; 2211-opening end; 2212-the first clamping surface; 22121-elastic ribs; 2213-limiting structure; - sliding opening; 223 - guiding opening;

230-the second joint part; 231-fixed end; 232-free end; 2321-stop protrusion; 2322-the first clamping groove; 2323-deformation enhanced hole;

240-first main body; 241-bottom; 2411-first wire hole; 242-second detachable connection; 2421-jaw; Pre-positioned holes;

250 - the first outer edge;

260-first side wall; 261-axial guide; 270-installation hole;

300-connecting seat;

310-the second electrical connection part; 311-the first conductive terminal; 312-the second conductive terminal; 313-the third conductive terminal;

321-the first protrusion; 3211-the second clamping surface;

331-the second protrusion; 332-the second engaging groove;

340-second main body; 341-top end; 342-inner ring side wall;

350-the second outer edge; 351-the side wall of the outer ring;

360-socket slot;

400 - fixtures for lamps;

500-lamp body assembly;

511-power supply module; 512-light source module; 513-light distribution element;

600 - Lighting device.

detailed description

In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only part embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

As shown in FIG. 1 , FIG. 2 and FIG. 3 , the junction box 100 provided by the embodiment of the present invention includes a housing 110 , a connection terminal 120 and a wire crimping spring 130 .

Wherein, the housing 110 has a wire inlet 111 that runs through the inside and outside, that is, the housing 110 has an inner cavity, and the terminal 120 and the wire crimping shrapnel 130 are located in the inner cavity of the housing 110 , and the connection terminal 120 and the wire crimping shrapnel 130 are located in the inner cavity. A wire clamping space is formed. Relative to the connection terminal 120 , the wire crimping shrapnel 130 is arranged close to the wire inlet 111 .

As shown in FIG. 4 , the connection terminal 120 has a wire abutting portion 121 and a mounting portion 122 , and a connecting plate 123 that are oppositely disposed. The mounting portion 122 is disposed close to the housing 110 , that is, the connection terminal 120 is fixed in the housing 110 by means of the mounting portion 122 . The connecting plate 123 connects the wire abutting portion 121 and the mounting portion 122. The connecting plate 123 is provided with an adjacent insertion space 1231 and a hook support portion 1232. The insertion space 1231 runs through the connection plate 123, and the hook support portion 1232 then It is located away from the wire abutting portion 121 and close to the mounting portion 122 .

As shown in FIG. 5 , the wire crimping elastic piece 130 has a first free portion 131 and a first fixed portion 132 , and a wire clamping space is formed between the first free portion 131 and the wire abutting portion 121 . A free portion 131 is close to the wire clamping space. When the first free portion 131 of the wire pressing spring 130 receives an external force close to the first fixing portion 132 , the first free portion 131 is away from the wire clamping space. The fixing seat may include a hooking area 1321, which penetrates into the insertion space 1231 from one side of the wire inlet 111 and hooks on the hooking support part 1232, that is, the hooking support part 1232 couples the hooking Zone 1321 provides support.

Of course, the first free portion 131 and the first fixed portion 132 of the thread-pressing elastic piece 130 are relative terms. Since the connecting terminal 120 has a clamping space and a hooking support portion 1232, the crimping elastic piece 130 has a hooking area 1321 matching the clamping space and the hooking supporting portion 1232, so that the first fixing portion 132 of the crimping elastic piece 130 can be It is at least partly supported by the terminal 120 , thereby avoiding the problem of being completely supported by the housing 110 , resulting in concentrated stress on the housing 110 when the wire crimping shrapnel 130 is stressed.

Wherein, the insertion space 1231 can be in the shape of a square on the connecting plate 123 , that is, it is arranged through the middle of the connecting plate 123 , or it can not be in the shape of a square, but communicate with the edge of the connecting plate 123 .

A wire clamping space is formed between the first free portion 131 and the wire abutting portion 121, whereby the first free portion 131 approaches or moves away from the wire abutting portion 121 by an external force, thereby increasing or reducing the wire clamping space The size of the wire is convenient for the wire to pass through the wire clamping space or to be clamped in the wire clamping space.

In order to facilitate the insertion of the wire along a straight line and be clamped in the wire clamping space, the axis of the wire inlet 111 and the wire clamping space are on the same straight line. Apparently, the number of wire inlets 111 may be equal to the number of wire clamping spaces, as well as the number of crimping springs 130 and connection terminals 120 .

In order to further alleviate the problem of concentrated stress on the housing 110 when the crimping shrapnel 130 is under stress, in the embodiment of the present invention, the first free portion 131 can partially penetrate into the insertion space 1231 and abut against the wire abutting portion 121 (see Fig. 7). Wherein, the wire abutting portion 121 is located on the side of the connecting plate 123 away from the wire inlet 111, and the first free portion 131 penetrates into the insertion space 1231 from the side of the wire inlet 111 and abuts against the wire abutting portion under normal conditions. 121 , a wire clamping space is formed between the wire abutting portion 121 and the first free portion 131 . The first free portion 131 can abut against the wire abutting portion 121 under normal conditions (when there is no deformation due to external force), that is, under normal conditions, the clamping space for the wires is small, and the wires can be clamped therein. Under the action of external force, the distance from the wire abutting portion 121 increases the size of the wire clamping space, so as to facilitate the insertion of the wire from the wire inlet 111 into the wire clamping space.

Therefore, in the embodiment of the present invention, both the first fixed part 132 and the first free part 131 of the crimping spring 130 on the junction box 100 partly penetrate the insertion space 1231 and abut against the terminal 120, so that the crimping When the elastic piece 130 is under force, the pressure is at least partially transmitted to the terminal 120 , and then transmitted to the housing 110 from the terminal 120 , so as to avoid the problem of excessive concentration of pressure exerted by the elastic piece 130 on the housing 110 .

In the embodiment of the present invention, the wire abutting portion 121 may include a wire abutting surface, the wire abutting surface is set toward the mounting portion 122, and may be a serrated surface 1211 (see FIG. 6 ), so as to improve the wire being clamped on the wire card. static friction in the space. Wherein, the extending direction of each sawtooth of the sawtooth surface 1211 may be perpendicular to the axis of the wire inlet 111 . Of course, the wire abutting portion 121 may also include a wire abutting back surface, which is arranged opposite to the wire abutting surface, and can be arranged close to the inner wall of the housing 110, so as to improve the stability of the terminal 120 inside the housing 110. sex.

The hooking area 1321 can be formed as a flange of the first fixing portion 132 away from the first free portion 131 (refer to FIG. 5 ). The cross-section of the hooking area 1321 may be arc-shaped, so as to be able to overlap on the hooking support portion 1232 . Wherein, the articulated area 1321 may include a articulated surface, the articulated surface faces the articulated supporting portion 1232 and faces away from the first free portion 131 , obviously, the articulated surface is a pressure-receiving surface of the thread-pressing elastic piece 130 , When the first free portion 131 of the thread-pressing elastic piece 130 is subjected to an external force, the engaging surface bears pressure and abuts against the engaging supporting portion 1232 .

The installation portion 122 includes an installation surface 1221 , the installation surface 1221 is used for adhering to the inner wall of the housing 110 and facing away from the wire abutting portion 121 . The housing 110 is provided with a pressing port 112 and a pressing member 113. The pressing port 112 runs through the inside and outside of the housing 110. The pressing member 113 is arranged on the pressing port 112 along the axial direction of the pressing port 112. The pressing port 112 and the pressing member 113 Set away from the mounting surface 1221 , the first free portion 131 of the wire crimping spring 130 is set close to the pressing opening 112 and the first free portion 131 is far away from the pressing opening 112 , that is, the first fixing portion 132 is set close to the mounting portion 122 . The pressing member 113 abuts against the first free portion 131 after passing through the pressing opening 112 , and drives the first free portion 131 to be disposed close to the first fixing portion 132 under the external force of the housing 110 , that is, away from the wire abutting portion 121 .

In the embodiment of the present invention, the axial direction of the wire inlet 111 and the axial direction of the pressing port 112 can be perpendicular to each other, that is, after the external wire is inserted into the wire clamping space from the wire inlet 111, the pressing member 113 can be inserted perpendicular to the wire The direction exerts deformation pressure on the first free portion 131 . Moreover, the axial direction of the cable inlet 111 is parallel to the installation surface 1221 , and the axial direction of the pressing opening 112 is perpendicular to the installation surface 1221 . Of course, in some embodiments, the axis of the wire inlet 111 and the axis of the pressing opening 112 may not be perpendicular to each other, so as to realize the function of the wire pressing elastic piece 130.

As shown in Figure 2 and Figure 5, the wire crimping elastic piece 130 also includes a circular arc bending area 133, and the first fixing part 132 also includes a first transition area 1322, and the first transition area 1322 connects the arc bending part and the hooking area 1321. The first free portion 131 includes a narrow region 1311 and a second transition region 1312 . The second transition area 1312 is connected between the arc bending area 133 and the narrow area 1311 and abuts against the pressing member 113 , and the narrow area 1311 penetrates into the insertion space 1231 and abuts against the wire abutting portion 121 . The first transition area 1322 is opposite to the second transition area 1312 , and the hooking area 1321 is formed by flanging from the first transition area 1322 to the direction away from the second transition area 1312 . In the crimping elastic piece 130, the extension surfaces of the first transition area 1322, the second transition area 1312 and the narrow area 1311 are all inclined. And the narrow area 1311 is gradually away from the wall where the wire inlet 111 is located. Thus, the narrow area 1311 and the second transition area 1312 are inclined without preventing the wire from passing into the wire clamping space (or having a certain guiding effect), and due to the extension of the narrow area 1311 and the second transition area 1312 The surface does not extend along the axial direction of the wire inlet 111 , therefore, the narrow area 1311 and the second transition area 1312 can exert a relatively large elastic force on the wire abutting portion 121 .

It should be understood that the wire crimping elastic sheet 130 is integrally made or provided integrally from a metal elastic material, and the second transition region 1312 may be elastic and capable of proper deformation. The arc bending area 133 and the first transition area 1322 can abut against the inner wall of the housing 110, so that the crimping spring 130 can be directly supported by the housing 110 in addition to being supported by the terminal 120 in the housing 110, It has higher stability in the housing 110 .

In order to make it easier for the hooking area 1321 to penetrate into the insertion space 1231, it is hooked on the hooking support part 1232, so that the hooking support part 1232 can support the hooking area 1321, and the hooking area 1321 is hooked on the hooking support part 1232. For reliability, the connection plate 123 is also inclined relative to the installation surface 1221 in the housing 110 , and the connection plate 123 gradually approaches the wall surface where the wire inlet 111 is located from the installation portion 122 to the pressing port 112 . In other words, the extension surface of the connection plate 123 is substantially perpendicular to the extension surfaces of the narrow area 1311 , the first transition area 1322 , and the second transition area 1312 in the wire-pressing elastic piece 130 . Moreover, the inclined connection plate 123 can also make the wire abutting portion 121 close to the wall of the wire inlet 111 , reducing the size of the junction box 100 .

It should be noted that the connection plate 123 and the wire crimping spring 130 are arranged obliquely relative to the installation surface 1221 of the terminal 120 , and the installation surface 1221 is considered to be horizontal in the housing 110 unless there is a special case.

In the embodiment of the present invention, as shown in FIG. 4 , the connecting terminal 120 may further include a positioning portion 124, the positioning portion 124 extends from the wire abutting portion 121 toward the wall where the wire inlet 111 is located, and the positioning portion 124 may abut against the shell. On the inner wall of the body 110 , thereby further improving the stability of the connecting terminal 120 in the housing 110 . Of course, the positioning portion 124 can also be suspended and not abut against the inner wall of the casing 110 .

The junction box 100 may include at least two connection terminals 120 arranged in parallel, and the connection direction of the at least two connection terminals 120 may be defined as a width direction. The width dimension of the positioning portion 124 may be equal to the width dimension of the insertion space 1231 . Alternatively, the external dimensions of the positioning portion 124 may be equal to the external dimensions of the insertion space 1231 , specifically, the length, width and rear dimensions of the two are the same. Apparently, in this case, the positioning portion 124 may be formed by folding a metal part on the plugging space.

Also, the width dimension of the connecting plate 123 and the width dimension of the wire abutting portion 121 may be equal.

In order to make the first free part 131 move when the pressing part 113 arranged on the pressing port 112 moves in the axial direction, in the direction perpendicular to the mounting surface 1221, the line where the pressing part 113 can move is aligned with the first free part 131 At least partially overlap, in other words, in a direction perpendicular to the installation surface 1221 , the orthographic projection of the first free portion 131 on the installation surface 1221 overlaps with the orthographic projection of the pressing member 113 on the installation surface 1221 . However, due to the setting of the positioning portion 124 on the terminal 120, the positioning portion 124 may be located between the pressing piece 113 and the first free portion 131. Obviously, the positioning portion 124 should avoid the pressure applied by the pressing piece 113 to the first free portion 131. force.

In the embodiment of the present invention, the pressing member 113 has a pressing foot 1131 (refer to FIG. 3 ), and the pressing foot 1131 extends toward the first free portion 131 and avoids the positioning portion 124 . Specifically, an avoidance hole may be provided on the positioning part 124 so that the pressing foot 1131 can abut against the first free part 131 after passing through, or as in the present application, the width of the positioning part 124 is smaller, and the first free part 131 The position abutting against the pressing foot 1131 has a larger width, therefore, the pressing foot 1131 can pass through both sides of the positioning portion 124 and abut against the first free portion 131 .

Wherein, the first free portion 131 may include a narrow area 1311 and a second transition area 1312, since the narrow area 1311 penetrates into the insertion space 1231, the second transition area 1312 is located outside the insertion space 1231 for abutting against the pressing member 113 . Wherein, compared with the narrow area 1311, the second transition area 1312 is close to the wire inlet 111 and far away from the wire abutting portion 121, and the thin and narrow area 1311 can penetrate the insertion space 1231 and then abut the wire abutting portion 121, that is, the narrow The width dimension of the area 1311 may be smaller than or equal to the width dimension of the insertion space 1231, and the width dimension of the second transition area 1312 is larger than the width dimension of the narrow area 1311, so as to limit the penetration depth of the narrow area 1311 , the second transition area 1312 is located outside the insertion space 1231 and abuts against the pressing member 113 , and can drive the first free portion 131 to deform under the action of the pressing member 113 .

In order to make the pressing foot 1131 abut against the second transition area 1312 of the first free portion 131 without contacting the positioning portion 124 between the pressing member 113 and the first free portion 131, the width of the second transition area 1312 is larger than According to the width of the positioning portion 124 , the pressing foot 1131 can avoid the positioning portion 124 and abut against the second transition region 1312 , that is, the pressing foot 1131 and the positioning portion 124 maintain a distance.

Although in the embodiment of the present invention, the second transition area 1312 and the first free portion 131 are inclined relative to the installation surface 1221, in order to improve the pressing effect of the pressing member 113 on the second transition area 1312, the pressing feet 1131 face the second transition area 1312 The end surface of the second transition area 1312 abutting against the pressing foot 1131 may also be a horizontal plane (parallel to the mounting surface 1221 ).

In the embodiment of the present invention, in the direction perpendicular to the width, it can be seen that the crimping elastic piece 130 is roughly U-shaped, and the narrow area 1311 and the hooking area 1321 are respectively located at the two ends of the U-shape, that is, the second transition area 1312 and the second transition area 1312. The first transition regions 1322 are substantially parallel to each other. Moreover, in order to enable the mounting area 1321 to penetrate the insertion space 1231, the width dimension of the mounting area 1321 is smaller than or equal to the width dimension of the insertion space 1231, and the width dimension of the second transition area 1312 is greater than the width of the insertion space 1231 size.

As shown in FIG. 4 , in the embodiment of the present invention, the connection terminal 120 may further include a coupling portion 125 and a strain portion 126 , the strain portion 126 connects the mounting portion 122 and the coupling portion 125 , and the strain portion 126 is away from the mounting surface 1221 from the mounting portion 122 direction extension. The coupling part 125 is used for electrical connection with the electrical matching of the junction box 100, and the strain part 126 is deformable to provide the coupling part 125 with the ability to move after being stressed, so as to improve the reliability of the coupling part 125 and other electrical connections. sex. In addition, along a direction perpendicular to the mounting surface 1221 , the coupling portion 125 can be farther away from or closer to the mounting portion 122 relative to the wire abutting portion 121 . Of course, relative to the wire abutting portion 121, the coupling portion 125 is far away from the mounting portion 122 so that the strain portion 126 has a sufficient length dimension, which further improves the deformation capability of the strain portion 126 and the reliability of the coupling portion 125 and other electrical connections. .

In the embodiment of the present invention, as shown in FIG. 4 , the connecting terminal 120 may further include an elastic reinforcement part 127, which is connected between the strain part 126 and the installation part 122, and is used to improve the strain capacity of the strain part 126, The probability of elastic failure after deformation of the strain portion 126 is reduced. Wherein, the elastic reinforcement part 127 may be in a bent V shape, and is arranged closer to the installation part 122 than the coupling part 125 .

In order to improve the stability of the connecting terminal 120 disposed in the housing 110, in the embodiment of the present invention, at least two positioning holes 1222 may be provided on the mounting surface 1221 of each connecting terminal, and a positioning member is provided in the corresponding housing 110. . There is an error-proof design between the at least two positioning holes 1222 and the corresponding at least two positioning pieces.

The casing 110 may include a docking plate 114 , and the pressing port 112 is disposed through the docking plate 114 . At least two mutually insulated receiving grooves are arranged on the docking plate 114, the receiving grooves run through the inside and outside of the housing 110, and the coupling parts 125 of at least two connecting terminals 120 are respectively arranged in at least two receiving grooves, thereby realizing the connection between the coupling parts 125 and The electric connection of the external electric makes the storage tank have the ability of electric connection. Obviously, the number of connecting terminals 120 may be equal to the number of receiving slots; in some cases, the number of connecting terminals 120 may be greater than the number of receiving slots.

In order to be able to rotate relatively without affecting the electrical connection between the junction box and the target object when the junction box 100 is mechanically connected to the target object (such as the first main body portion 240 of the fixing seat 200 provided in the following embodiments), the junction box on the At least two receiving grooves may be in a rotating structure centered on a rotating shaft 10 . It can be that at least two storage grooves are concentrically arranged around the rotating shaft 10. As shown in FIG. Circular or circular; as a variant, at least two receiving grooves can also be located on the same circumference of a rotating shaft 10, then the receiving grooves are arc-shaped, and the distance from each receiving groove to the rotating shaft 10 is the same. Obviously, in order to achieve effective electrical connection, the storage tanks are insulated from each other. When the number of storage tanks is two, the two storage tanks are L poles and N poles respectively; when the number of storage tanks is three, the three storage tanks They are the L pole, the ground pole and the N pole respectively, and the three receiving slots correspond to the three wire inlets 111 respectively, and the three wire inlets 111 are also respectively connected to the external wires of the L pole, the ground pole and the N pole. In addition, the number of storage tanks can also be three, such as four, five and so on.

As shown in FIG. 1 , there are three receiving grooves on the butt plate 114 from outside to inside, namely a first receiving groove 1141 , a second receiving groove 1142 and a third receiving groove 1143 .

Wherein, a first accommodating cavity recessed inward is provided on the butt plate 114 . The inner wall of the first accommodating cavity constitutes a cylindrical first insulating part with a certain height, a cylindrical second insulating part parallel to the first insulating part is provided in the first insulating part, and a cylindrical second insulating part is arranged in the second insulating part. A cylindrical third insulating portion parallel to the second insulating portion is provided, and an annular first receiving groove 1141 is formed between the first insulating portion and the second insulating portion. Between the second insulating portion and the third insulating portion An annular second receiving groove 1142 is formed between them, and a circular third receiving groove 1143 is provided in the center of the third insulating portion.

The housing 110 may further include a box side wall 115 , the extension surface of the box body side wall 115 is perpendicular to the installation surface 1221 , and the extension surface of the box body side wall 115 may be perpendicular to the extension surface of the docking plate 114 . The junction box 100 includes a first detachable connection portion 117 extending in a circumferential direction and surrounding the box body side wall 115 for detachably connecting the housing 110 to a target object.

Wherein, the first detachable connecting part 117 includes an extension part 1171 and a notch 1172, the extension part 1171 is compressed from the side wall 115 of the box body toward the direction away from the inner wall of the housing 110, and the notch 1172 runs through the extension along the side wall 115 of the box body. Section 1171. The first detachable connecting part 117 may further include a bevel guide area 1173 and a fastening area 1174 , the bevel guide area 1173 is arranged adjacent to the notch 1172 on the axis, and the fastening area 1174 and the bevel guide area 1173 are smoothly engaged in the circumferential direction. The fastening area 1174 is adapted to be clamped on the target object, thereby realizing the detachable connection of the first detachable connection part 117 to the target object.

Wherein, viewed along the axial direction, the notch 1172 can be a circumferential closed opening (that is, keep a distance from the outer edge of the extension part 1171 ), or an open ring opening (that is, keep connected with the outer edge of the extension part 1171 ). As shown in FIG. 1 , in order to improve the compactness of the structure, the notch 1172 in the embodiment of the present invention may be an open ring opening.

The casing 110 may further include a mounting plate 116 disposed opposite to the pressing opening 112 , and the extending surface of the mounting plate 116 is perpendicular to the extending surface of the side wall 115 of the box body. The installation plate 116 includes an inner surface and an outer surface opposite to each other. The inner surface is attached to the installation surface 1221 of the connection terminal 120 , and the outer surface is away from the pressing opening 112 relative to the first detachable connecting portion 117 . In other words, a step is formed between the outer surface and the first detachable connection part 117 , and the pre-positioning when the junction box 100 is installed on the target object can be facilitated by using the step.

In the embodiment of the present invention, the connecting terminal 120 should be made of conductive elastic material. Wherein, the connecting terminal 120 can be integrally formed during the manufacturing process, such as obtained by casting, or it can be made in sections and then connected together. For example, the connecting plate 123, the wire abutting portion 121 and the positioning portion 124 in the connecting terminal 120 are made in one body, and the mounting portion 122, the coupling portion 125 and the strain portion 126 are also made in one body, and then the connecting portion and the mounting portion 122 connection (such as welding) to obtain the terminal 120. In addition, it is also possible that the connection plate 123, the wire abutting portion 121 and the positioning portion 124 are made integrally, the coupling portion 125 and the strain portion 126 are made integrally, and the mounting portion 122 is a circuit board, thus connecting the connection plate 123 and The strained parts 126 are respectively connected to the circuit board, and realize the electrical connection between the connecting board 123 and the strained parts 126 .

Example 2

An embodiment of the present invention provides a lamp fixing device 400 , which includes a fixing base 200 and a connecting base 300 used as a pair. Wherein, the fixing base 200 can be pre-installed on the installation base such as the roof or ceiling, and the connecting base 300 can be pre-installed in the lamp, so that the lamp can be quickly and conveniently connected to the installation base such as the roof or ceiling.

Fig. 8 is a schematic structural view of the fixing seat 200 in the lamp fixing device 400 provided by Embodiment 2 of the present invention at one viewing angle, Fig. 9 is an exploded view of the fixing seat 200 at another viewing angle, and Fig. 10 is a view showing the fixing seat 200 at another viewing angle. Schematic diagram of the structure under different angles of view, FIG. 11 is a schematic diagram of the structure of the fixing base 200 after matching with the connecting base 300 , and FIG. 12 is a schematic structural diagram of the connecting base 300 under a different angle of view. Fig. 13 is an exploded view of the lighting device 600, and Fig. 14 is an axial sectional view of the lighting device 600 along the rotation axis 10, wherein in the lighting device 600 shown in Figs. The size of the outer edge portion 350 can extend radially outward, thereby increasing the radial surface size of the connecting seat 300. Therefore, the radial size of the connecting seat 300 in FIGS. 13 and 14 is obviously larger than that in FIGS. 8 to 12 The radial dimension of the connecting seat 300. The relevant structures are introduced respectively below in conjunction with FIG. 8-FIG. 14 .

As shown in FIGS. 8 , 9 , 10 and 11 , the first electrical connection portion 210 of the fixing base 200 can be embedded and connected to the second electrical connection portion 310 on the connection base 300 , that is, the first electrical connection portion 210 The concave-convex cooperation with the second electrical connection part 310 realizes the electrical connection. The first electrical connection part 210 has at least two accommodation grooves which are insulated from each other, and each accommodation groove has coupling parts 125 which can be electrically connected, such as two, three or four or more. The connecting portion 310 also has at least two conductive terminals, such as two, three or four or more, and each conductive terminal is electrically connected to the coupling portion 125 in each receiving groove.

In the embodiment of the present invention, extending along a certain direction may refer to extending substantially along the direction, and may also mean extending absolutely along the direction. Moreover, the circumferential direction in this application refers to the circumferential direction of the fixing seat 200, the connecting seat 300, and the lamp fixing device 400; the axial direction refers to the extension direction from the fixing seat 200 to the connecting seat 300 on the lamp fixing device 400; axial direction.

The fixing seat 200 includes a first electrical connection portion 210 and a first coupling portion 220 , the first coupling portion 220 is disposed along a circumferential direction and coaxially disposed with the first electrical connection portion 210 around a rotation axis 10 . The first coupling part 220 includes at least two installation grooves 221 arranged along the circumferential direction, and the installation grooves 221 include an open end 2211, a first clamping surface 2212 and a limiting structure 2213 arranged in sequence, wherein the first clamping surface 2212 It is facing away from the connection seat 300 and is connected to the open end 2211 and the limiting structure 2213, and the limiting structure 2213 extends along the axial plane. The mounting groove 221 is adapted to cooperate with the first projection 321 extending radially and circumferentially on the connecting base 300 , wherein the limiting structure 2213 is used to limit the first projection 321 from the opening end 2211 into the first projection 321 . The depth of a clamping surface 2212, that is, the limit in one direction in the circumferential direction, the first clamping surface 2212 can be used for clamping to achieve axial positioning, so that the fixing seat 200 and the connecting seat 300 can be realized by using the installation groove 221 mechanical connection.

As shown in FIG. 10 , elastic ribs 22121 are provided on the first clamping surface 2212. The elastic ribs 22121 extend along the direction from the opening end 2211 to the limiting structure 2213 and are arc-shaped, and the center of the arc is at least The centers of the two circumferentially arranged installation grooves 221 are arranged concentrically. Apparently, the center of the circle is collinear with the rotation axis 10 in Embodiment 1. Thus, when the third coupling portion of the connecting base 300 is combined with the first coupling portion 220 of the fixing base 200, it can rotate relatively around the rotation axis 10, and during the relative rotation, due to the elastic ribs on the first clamping surface 2212 22121, so that the first clamping surface 2212 and the second clamping surface 3211 can be closely matched, so as to avoid relative shaking after the fixing seat 200 and the connecting seat 300 are matched. As shown in FIG. 10 , two elastic ribs 22121 may be provided on each first clamping surface 2212 .

In the embodiment of the present invention, at least two installation grooves 221 are evenly distributed along a circumferential direction, and the number may be two, three, four or more.

In the embodiment of the present invention, the fixing base 200 may also have a second combining portion 230 . Wherein, the second coupling portion 230 is arranged along the circumferential direction, and is at least used for limiting connection in the circumferential direction.

The first combining portion 220 is disposed along the circumferential direction and located on the outer periphery of the first electrical connecting portion 210 . As a variant, the first electrical connection part 210 may be disposed on the outer periphery of the first combination part 220 along the circumferential direction, or the first electrical connection part 210 may surround between the first combination part 210 and the second combination part 230 along the circumferential direction.

The fixing seat 200 may further include a first main body portion 240 and a first outer edge portion 250 , and the first outer edge portion 250 surrounds the first main body portion 240 .

The fixing seat 200 may further include a first side wall 260, the first side wall 260 surrounds the outer periphery of the first main body portion 240, and the first outer edge portion 250 surrounds the outer periphery of the first side wall 260, in other words, the radial surface of the fixing seat 200 On the top, the first main body portion 240 , the first side wall 260 and the first outer edge portion 250 are arranged in sequence from the center to the outer periphery.

In the embodiment of the present invention, the first combining portion 220 may be disposed on the first main body portion 240 , and the second combining portion 230 may be disposed on the first outer edge portion 250 . As a modification, both the first combining portion 220 and the second combining portion 230 may be arranged on the first main body portion 240, or both may be arranged on the first outer edge portion 250, or the first combining portion 220 may be arranged on the first outer edge portion 250. On the edge portion 250 , the second combining portion 230 is disposed on the first main body portion 240 . Moreover, both the first joint part 220 and the second joint part 230 are arranged along the circumferential direction.

In the embodiment of the present invention, the first main body portion 240 may include a bottom end portion 241 extending along a radial plane. The bottom end portion 241 may have a plate shape. The first side wall 260 extends axially from the periphery of the bottom end portion 241 toward the connecting seat 300 . Relative to the bottom end portion 241 , the first electrical connection portion 210 is disposed close to the connection base 300 . Wherein, the first combining portion 220 may be disposed on the bottom end portion 241 . As a variation, only the second combining portion 230 may be provided on the bottom end portion 241 , or the first combining portion 220 and the second combining portion 230 may be provided at the same time.

Wherein, the second joint part 230 is provided along the circumferential direction, at least for the purpose of limiting the position opposite to the position-limiting structure 2213 in the circumferential direction, that is to say, it has a back-stop function. Therefore, the connection between the position-limiting structure 2213 and the second joint part 230 can be realized. The position of the seat 300 on the fixed seat 200 is limited in both clockwise and counterclockwise directions along the circumference. Moreover, the second coupling portion 230 can also be used for axially opposite to the first clamping surface 2212, that is, through the first clamping surface 2212 and the second coupling portion 230, the connecting seat 300 can be positioned on the fixed seat 200. Limits in two opposite directions along the axial direction.

Wherein, the second joint portion 230 includes a fixed end 231 and a free end 232 arranged and connected in sequence along the circumference. Direction movement to exert an axial force on the connection seat 300, the axial force is from the fixed end 231 toward the direction of the connection seat 300, and the surface of the free end 232 facing the connection seat 300 is provided with a stop protrusion 2321, the stop protrusion 2321 is used to prevent the second protrusion 331 of the connection seat 300 from being combined with the second joint part 230 to come out in the opposite direction, that is, to reduce the probability that the fixed seat 200 and the connection seat 330 will automatically move in the opposite direction and separate after they are assembled, in other words To prevent the first protrusion 321 of the connection base 300 from sliding into the installation groove 221 along the first direction and automatically slip out of the installation groove 221 in the direction opposite to the first direction, that is, to limit the first protrusion 321 .

In order to further prevent the first protrusion 321 of the connecting seat 300 from sliding into the mounting groove 221 along the first direction and then automatically slip out of the mounting groove 221 in the direction opposite to the first direction, the free end 232 is also provided with a second surface on the surface facing the connecting seat 300. A clamping groove 2322 , opposite to the first clamping groove 2322 , the backstop protrusion 2321 is away from the fixed end 231 . The first engaging groove 2322 can be engaged with the first protrusion 321 of the connecting seat 300 to further realize the circumferential positioning of the connecting seat 300 and the fixing seat 200 .

As shown in FIG. 8 , the first side wall 260 and the bottom end portion 241 surround and form an accommodating cavity, and the first electrical connection portion 210 may be disposed in the accommodating cavity. The opening of the accommodating cavity may face the connection base 300 , and relative to the first electrical connection portion 210 , the bottom end 241 may be disposed away from the connection base 300 . For example, the first electrical connection portion 210 may be disposed on the surface of the bottom end portion 241 facing the connection seat 300 , and is disposed on the middle portion of the bottom end portion 241 .

The first electrical connection part 210 can be used to realize electrical connection with the second electrical connection part 310 in the connection base 300, and the mechanical connection between the first electrical connection part 210 and the first main body part 240 of the fixing base 200 can be fixed. Connection, also can be detachable connection. Wherein, the first electrical connection part 210 may be the junction box 100 in Embodiment 1 of the present invention. When the first electrical connection part 210 is the junction box 100 in Embodiment 1 of the present invention, in order to realize the detachable connection between the bottom end part 241 and the junction box 100, the bottom end part 241 should have a second detachable connection part 242 , the second detachable connection part 242 is used for detachable connection with the first detachable connection part 117 of the junction box 100 .

In order to realize the detachable connection between the first main body part 240 and the junction box 100, the structure of the second detachable connection part 242 of the present application and the connection method with the first detachable connection part 117 in the first embodiment are introduced below.

Wherein, the second detachable connecting part 242 may include the above-mentioned bottom end 241 and claws 2421, the claws 2421 are arranged along the circumference of a rotating shaft 10 (same as the rotating shaft 10 in Embodiment 1), opposite to the bottom end 241 , the clamping claw 2421 is disposed close to the connection base 300 , and a clamping gap 2422 is formed between the clamping claw 2421 and the top end 341 , and the clamping gap 2422 is suitable for clamping the fastening area 1174 of the junction box 100 .

As shown in FIG. 9 , the second detachable connection part 242 may further include a limit stopper 2423 extending axially, opposite to the claw 2421 , the limit stopper 2423 is away from the centerline of the rotating shaft 10 . When connecting the junction box 100 of Embodiment 1 of the present invention to the first main body 240 of the present application, the claw 2421 can be axially aligned with the notch 1172 of the junction box 100 (the rotation axes 10 of the two are collinear), At this time, the outer edge of the extension part 1171 of the first detachable connection part 117 abuts against the limit stopper 2423 so that both are aligned in the circumferential direction; The inclined surface guide area 1173 and the fastening area 1174 enter into the engagement gap 2422 in turn, and the fastening area 1174 is clamped in the engagement gap 2422, thereby realizing the first detachable connection part 117 and the second detachable connection part 242 detachable connection between. In addition, since a step is formed between the outer surface of the housing in the junction box 100 and the first detachable connecting portion 117, correspondingly, the first main body portion 240 is provided with a pre-positioning hole 243, and the size of the pre-positioning hole 243 is suitable for Penetrating through the step, that is, utilizing the step and the pre-positioning hole 243 on the first main body portion 240 further realizes the pre-positioning of the junction box 100 and the first main body portion 240 , improving the convenience of connecting and aligning the two. The number of claws 2421 can be three, or more than three, such as four, five, etc., and the number of notches 1172 and the number of claws 2421 can be equal or not.

Wherein, viewed along the axial direction of the junction box 100, the notch 1172 can be a circumferential closed ring opening (that is, keeping a distance from the outer edge of the extension part 1171), or an open ring opening (that is, keeping a distance from the outer edge of the extension part 1171). connect). In order to improve the compactness of the structure, the notch 1172 in the embodiment of the present invention can also be an open ring opening. At this time, since the notch 1172 needs to be matched with the claw 2421, the limit baffle 2423 is in order to abut against the extension of the housing in the junction box 100 On the outer edge of 1171 , naturally, the limit baffle 2423 can be disposed between two adjacent claws 2421 , so that the structures of the first detachable connection part 117 and the second detachable connection part 242 can be more compact. As a modification, the notch 1172 on the bottom end plate can also be a closed-loop notch 1172 viewed from the axial direction, that is, it does not penetrate to the outer edge of the bottom end plate. At this time, since the notch 1172 and the claw 2421 need to be aligned and matched, The limit baffle 2423 naturally needs to keep a distance from the claw 2421 in order to abut against the outer edge of the bottom end plate, and the limit baffle 2423 is disposed on the periphery of the claw 2421 .

In the embodiment of the present invention, the assembly efficiency between the first detachable connection part 117 and the second detachable connection part 242 can be further improved by setting the limit baffle 2423 .

Certainly, the first detachable connection part 117 and the second detachable connection part 242 may not be the structure as described above, such as a common screw connection structure.

Wherein, as mentioned in Embodiment 1, at least two receiving grooves can be provided on the butt plate 114 on the junction box 100 (that is, the end face of the first electrical connecting portion 210 facing the connecting seat 300), and at least two receiving grooves are insulated from each other. And it is a rotary structure centered on a rotating shaft 10 .

It can be that at least two receiving grooves are concentrically arranged around the rotating shaft 10. As shown in Figure 1, the receiving grooves can be circular or annular; On the same circumference, the receiving grooves are arc-shaped, and the distance from each receiving groove to the rotating shaft 10 is the same.

Obviously, in order to achieve effective electrical connection, the storage tanks are insulated from each other. When the number of storage tanks is two, the two storage tanks are L poles and N poles respectively; when the number of storage tanks is three, the three storage tanks They are L pole, ground pole and N pole respectively. In addition, the number of storage tanks can also be more than three, such as four, five and so on.

For example, as in Embodiment 1, the butt plate 114 of the junction box 100 (that is, the end surface of the first electrical connection part 210 facing the connection seat 300 ) may include first receiving grooves 1141 that are insulated from the outside to the inside around the rotation axis 10 1. The second receiving groove 1142 and the third receiving groove 1143, each containing groove has a coupling portion 125 of a connecting terminal, and correspondingly, the connecting base 300 has a mutual first conductive terminal 311 and a second conductive terminal 312 from outside to inside and the third conductive terminal 313 .

As a variation, the first electrical connection portion 210 may also be provided with conductive terminals instead of receiving grooves, and the second electrical connecting base 300 on the corresponding connecting base 300 is provided with receiving grooves instead of conductive terminals.

The above describes the specific structure and connection method between the second detachable connection part 242 on the first joint part 220 and the second detachable connection part 242 of the junction box 100 in the embodiment of the present invention. The structure of other components in .

In the embodiment of the present invention, the limiting structure 2213 of the first coupling portion 220 extends from the bottom end 241 toward the surface of the connecting seat 300 toward the connecting seat 300 (such as extending axially close to the connecting seat 300 ), the first The clamping surface 2212 extends in the circumferential direction from the end surface of the limiting structure 2213 close to the connecting base 300 , and opposite to the bottom end 241 , the first clamping surface 2212 is disposed close to the connecting base 300 .

There is also a first wire passing hole 2411 on the bottom end 241, the first wire passing hole 2411 is provided through the axial direction, and may be arranged between the first electrical connection part 210 and the first joint part 220, and the external wires are connected from the bottom The side of the end portion 241 facing away from the connecting seat 300 penetrates into the middle accommodating cavity, and is electrically connected with the junction box 100 located in the accommodating cavity, so as to realize power supply to the junction box 100 . Of course, as a modification, the position of the first wire passing hole 2411 may not be set between the first electrical connection part 210 and the first joint part 220, but other positions, and its specific position can be flexibly set according to needs, as long as it can be realized. line function and meet the requirements of safety regulations.

The first outer edge portion 250 extends along the radial plane, and the first side wall 260 has an axial guide portion 261 extending axially. In order to realize the guiding function of the axial guide portion 261, the axial guide portion 261 should be larger than the bottom end. The portion 241 and the first outer edge portion 250 are closer to the connecting base 300 . Therefore, relative to the first outer edge portion 250 , the axial guide portion 261 is away from the bottom end portion 241 .

The axial guide portion 261 can be used to guide the fitting and alignment of the fixing base 200 and the connecting base 300 , and then rotate the connecting base 300 relative to the fixing base 200 to realize the mating connection between the fixing base 200 and the connecting base 300 .

The fixing seat 200 also has a mounting hole 270, which can be arranged on the first main body portion 240 in the axial direction, and is located on the inner ring of the first joint portion 220, that is, closer to the first body than the first joint portion 220 The circumferential center of the portion 240. The number of mounting holes 270 may be three, four or more, and are evenly distributed along the circumferential direction. Certainly, as a modification, the installation hole 270 may also be provided not on the first main body portion 240 , but on the first outer edge portion 250 , or on the periphery of the first outer edge portion 250 .

The first electrical connection part 210 may be located on the first body part 240 and may be located on the inner circle of the first combining part 220 . In some special cases, it may be located on the first outer edge portion 250 .

The fixing base 200 of the embodiment of the present invention has been introduced above, and the connection base 300 matching the fixing base 200 will be introduced below in combination with the above fixing base 200 .

As shown in Figure 11 and Figure 12, the connection base 300 includes a second electrical connection part 310 and a third joint part, the third joint part is arranged along the axis and coaxially arranged with the second electrical connection part 310 around a rotation axis, the third joint part The part includes a first protrusion 321, at least two first protrusions 321 are arranged along the axis and protrude toward the fixing base 200, the first protrusion 321 includes a second engaging surface 3211, and the second engaging surface 3211 The surface 3211 faces away from the fixing base 200, and the first protrusion 321 is suitable for sliding into or out of the installation groove 221 of the fixing base 200 through the opening end 2211 of the fixing base 200, and the sliding depth is limited by the limiting structure 2213, so that The second clamping surface 3211 cooperates with the first clamping surface 2212 .

In the embodiment of the present invention, the connecting base 300 may further include a fourth combining portion, which is disposed along the circumferential direction and used for mating and connecting with the second combining portion 230 of the fixing base 200 . Wherein, the fourth combining portion may include a second protrusion 331 .

The connection base 300 may include a second main body portion 340 , on which a third combining portion and the second electrical connection portion 310 may be disposed.

The connecting seat 300 may further include a socket groove 360 , which is provided around the second main body portion 340 in the circumferential direction, and is used for socket connection with the axial guide portion 261 of the fixing seat 200 .

In the embodiment of the present invention, the connection seat 300 may further include a second outer edge portion 350 , and the second outer edge portion 350 surrounds the outer periphery of the socket groove 360 . Wherein, the third combining portion and the fourth combining portion can be set on the second main body portion 340, or on the second outer edge portion 350, or one of them is set on the second main body portion 340 and the other is set on the second main body portion 340. on the outer edge portion 350 . In the embodiment of the present invention, the third combining portion is disposed on the first main body portion 240 , and the fourth combining portion is disposed on the second outer edge portion 350 .

The second main body portion 340 further includes a top end portion 341 extending along a radial plane, a sleeve groove 360 is disposed on the periphery of the top end plate, and a notch of the sleeve groove 360 is disposed toward the fixing seat 200 . The third combining portion may be connected to the top end portion 341 , and relative to the top end portion 341 , the second electrical connection portion 310 is disposed away from the fixing base 200 . As a variation, the fourth coupling portion may also be provided on the top end portion 341 .

The second outer edge portion 350 extends along a radial surface, and when the fourth combining portion includes the second protrusion 331 , it may be disposed on a surface of the second outer edge portion 350 facing the fixing seat 200 along a circumferential direction. The second outer edge portion 350 of the connecting base 300 is substantially aligned with the first outer edge portion 250 of the fixing base 200 in the axial direction, so that the second protrusion 331 on the second outer edge portion 350 can be aligned with the second outer edge portion 331 on the first outer edge. The second joint part 230 on the part 250 is connected. Wherein, after the connecting seat 300 is socketed with the fixed seat 200, the second protrusion 331 can rotate to the free end 232 of the second joint part 230 when the external force drives the connecting seat 300 to rotate relative to the fixed seat 200, and the free end 232 deforms relative to the fixed end 231 and exerts an elastic force on the second protrusion 331 from the fixing seat 200 toward the connecting seat 300 , the elastic force makes the first clamping surface 2212 and the second clamping surface 3211 abut against each other, thereby realizing the fixed seat 200 and the axial fixation of the connecting seat 300. Moreover, the stop protrusion 2321 on the free end 232 can prevent the second protrusion 331 from disengaging from the second joint portion 230 automatically.

The second electrical connection part 310 may be located on the second main body part 340 and located on the inner ring of the third joint part. In some special cases, the second electrical connection part 310 may be located on the second outer edge part 350 .

As shown in Figure 8, Figure 12, Figure 13 and Figure 14, in order to realize the electrical connection between the fixing base 200 and the connecting base 300, the second electrical connection part 310 is arranged towards the fixing base 200, and includes first The conductive terminal 311 , the second conductive terminal 312 and the third conductive terminal 313 . When the first joint portion 220 of the fixing base 200 is connected to the third joint portion of the connection base 300, the first conductive terminal 311, the second conductive terminal 312 and the third conductive terminal 313 are accommodated in the first housing respectively. slot 1141 , the second receiving slot 1142 and the third receiving slot 1143 , so as to realize the electrical connection between the first electrical connection portion 210 of the fixing base 200 and the second electrical connection portion 310 of the connection base 300 .

Wherein, the first conductive terminal 311 and the second conductive terminal 312 are metal rings adapted to the size and shape of the first receiving groove 1141 and the second receiving groove 1142 respectively, and the third conductive terminal 313 is a metal ring compatible with the third receiving groove 1143. A metal needle of appropriate size and shape. Of course, the conductive terminals on the connection base 300 may also be metal rings. Moreover, the first conductive terminal 311 , the second conductive terminal 312 , and the third conductive terminal 313 are insulated from each other and have a rotating structure centered on a rotating shaft 10 , that is, the three may be concentric circle structures. Of course, when the number of conductive terminals is two, the concentric circle structure may also be used.

As a modification, the conductive terminals on the connection base 300 can be distributed on the same circumference of the rotating shaft 10. At this time, the conductive terminals can all be metal needles, and the corresponding receiving grooves are arc-shaped, and at least two conductive terminals can be inserted respectively. It can be relatively rotated after being inside the storage tank. Of course, with the increase of the number of conductive terminals in this electrical connection mode, the relative rotation angle between the connecting base 300 and the fixing base 200 will decrease.

The lamp fixing device 400 provided by the embodiment of the present invention is suitable for a lamp body whose radial dimension is less than 550 mm.

As shown in FIG. 13 and FIG. 14 , the connecting base 300 is connected with the lamp body to form a lamp body assembly 500 , and the lamp body assembly 500 is mated and connected with the fixing base 200 to form a lighting device 600 . Moreover, the lamp body assembly 500 can seal the light distribution element 513 or the lampshade with the light source module 512 and the power supply module 511, and the sealing enclosure can make the light distribution element 513 or the lampshade undetachably cover the light source module 512 and the power supply module 511. , to prevent foreign objects such as mosquitoes from entering the light source cavity and affecting the light emission.

Example 3

The above-mentioned embodiment 2 provides a lamp fixing device 400, and embodiment 3 of the present invention provides another lamp fixing device 400, including a paired fixing base 200 and a connecting base 300, wherein the fixing base 200 can be pre-installed on the roof or ceiling On an installation basis such as the roof or a ceiling, the connecting seat 300 is pre-installed in the lamp, thereby enabling the fast and convenient connection of the lamp to the installation foundation such as the roof or ceiling.

Fig. 15 is a schematic structural view of the fixing seat 200 of the lamp fixing device 600 in Embodiment 3 of the present invention at one viewing angle, Fig. 16 is a structural schematic view of the fixing seat 200 in Fig. 15 at another viewing angle, and Fig. 17 is an embodiment of the present invention 3 is a schematic diagram of the structure of the connection base 300 of the lamp fixing device 400 in a viewing angle. Fig. 18 is a schematic structural diagram of a lighting device 600 including a fixing base 200 and a lamp body assembly 500 in Embodiment 3 of the present invention, and Fig. 19 is an axial cross-sectional view of the lighting device 600 in Embodiment 3 of the present invention along the rotation axis 10, obviously in Fig. 18 and Fig. 19, the radial dimension of the connecting seat 300 is significantly larger than that of the connecting seat 300 in Fig. 15-Fig. Extend radially outward as needed. The relevant structures are introduced below in conjunction with FIGS. 15-19 .

As shown in Figures 15 and 16, the first electrical connection part 210 of the fixing base 200 can be embedded and connected with the second electrical connection part 310 on the connection base 300, that is, the first electrical connection part 210 and the second electrical connection part 310 male-female fit for electrical connection. The first electrical connection part 210 has at least two mutually insulated receiving grooves, such as two, three or four or more. Correspondingly, the second electrical connection part 310 also has at least two conductive terminals, such as two , three or four or more, each conductive terminal is electrically connected to the coupling portion 125 in each receiving groove.

In the embodiment of the present invention, extending along a certain direction may refer to extending substantially along the direction, and may also mean extending absolutely along the direction. Moreover, the circumferential direction of the present application refers to the circumferential direction of the fixing seat 200, the connecting seat 300, and the lamp fixing device 400; axial direction.

The fixing base 200 includes a first electrical connection portion 210 and a first coupling portion 220 , the first coupling portion 220 is disposed along the circumferential direction and coaxially disposed with the first electrical connection portion 210 around the rotation axis 10 . The first coupling part 220 includes at least two installation grooves 221 arranged along the circumferential direction, and the installation grooves 221 include an open end 2211, a first clamping surface 2212 and a limiting structure 2213 arranged in sequence, wherein the first clamping surface 2212 It is facing away from the connection seat 300 and is connected to the open end 2211 and the limiting structure 2213, and the limiting structure 2213 extends along the axial plane. The mounting groove 221 is adapted to cooperate with the first projection 321 extending radially and circumferentially on the connecting base 300 , wherein the limiting structure 2213 is used to limit the first projection 321 from the opening end 2211 into the first projection 321 . The depth of a clamping surface 2212, that is, the limit in one direction in the circumferential direction, the first clamping surface 2212 can be used for clamping to achieve axial positioning, so that the fixing seat 200 and the connecting seat 300 can be realized by using the installation groove 221 mechanical connection.

The fixing seat 200 may further include a second combining portion 230 , which is disposed along the circumferential direction, and is at least used for limiting the position between the fixing seat 200 and the connecting seat 300 in the circumferential direction.

The fixing seat 200 may include a first main body part 240 and a first outer edge part 250 , and the first outer edge part 250 surrounds the outer periphery of the first main body part 240 .

The fixing seat 200 may further include a first side wall 260, the first side wall 260 surrounds the outer periphery of the first main body portion 240, and the first outer edge portion 250 is arranged around the first side wall 260, in other words, the radial surface of the fixing seat 200 , the first main body portion 240 , the first side wall 260 and the first outer edge portion 250 are sequentially provided from the center to the outer periphery. Wherein, relative to the first main body portion 240 , the first outer edge portion 250 is disposed close to the connection seat 300 .

In the embodiment of the present invention, the first combining portion 220 may be disposed on the second outer edge portion 350 , and the second combining portion 230 is located on the second main body portion 340 . As a modification, both the first joint part 220 and the second joint part 230 can be located on the second outer edge part 350, or both can be located on the second main body part 340, or the former can be located on the second main body part 340 and the latter can be located on the second main body part 340. on the outer edge portion 350 .

The first main body part 240 also includes a bottom end part 241, the bottom end part 241 extends along the radial plane, the first joint part 220 can be connected to the bottom end part 241, relative to the bottom end part 241, the first electrical connection part 210 is close to the connection Seat 300 set. For example, the bottom end portion 241 is circular, and the first electrical connection portion 210 may be disposed at the circular position.

The second joint part 230 is provided along the circumferential direction, and at least is used to limit the position opposite to the position-limiting structure 2213 in the circumferential direction, that is, it has a back-stop function. Therefore, the connection seat 300 can be realized through the position-limiting structure 2213 and the second joint part 230 On the fixing seat 200, the two directions of clockwise and counterclockwise are limited in the circumferential direction. Moreover, the second coupling portion 230 can also be used for axially opposite to the first clamping surface 2212, that is, through the first clamping surface 2212 and the second coupling portion 230, the connecting seat 300 can be positioned on the fixed seat 200. Limits in two opposite directions along the axial direction.

Wherein, the second joint portion 230 includes a fixed end 231 and a free end 232 arranged and connected in sequence along the circumference. Direction movement to exert an axial force on the connection seat 300, the axial force is from the fixed end 231 toward the direction of the connection seat 300, and the surface of the free end 232 facing the connection seat 300 is provided with a stop protrusion 2321, the stop protrusion 2321 is used to prevent the first protrusion 321 of the connection base 300 from sliding into the installation groove 221 along the first direction and automatically slip out of the installation groove 221 in the direction opposite to the first direction, that is, to limit the first protrusion 321 .

In the embodiment of the present invention, the first coupling part 220 may further include a backstop part 2214, which is provided on the first engaging surface 2212 protrudingly, and can be aligned with the opening end 2211 in the axial direction, for Together with the anti-retraction protrusion 2321 of the second coupling portion 230 , the connecting seat 300 connected to the fixed seat 200 is prevented from retreating, preventing the anti-retraction protrusion 2321 from entering the first clamping surface 2212 and automatically disengaging from the opening end 2211 .

As mentioned above, the bottom end 241 can be annular (in the axial direction), and the first electrical connection part 210 includes an electrical housing 211 and an electrical component 212. Qi, the electrical components 212 are arranged in the electrical housing 211 . Wherein, the electrical housing 211 and the bottom end 241 can be integrally arranged, and the integral arrangement includes integral molding during the manufacturing process, or integral connection after separate manufacturing. The first electrical connection part 210 may further include an electrical cover 213 that covers the opening of the electrical housing 211 and is flush with the bottom end 241 . It can be understood that in this application, since the electrical housing 211 is integrated with the bottom end portion 241 , that is, a deformation after the case of the junction box 100 of the embodiment is integrated with the bottom end portion 241 . In some embodiments, the opening of the electrical housing 211 may not be flush with the bottom end 241 , but may be staggered from each other; similarly, the electrical cover 213 may also be not flush with the bottom end 241 , but staggered from each other.

In the embodiment of the present invention, the electrical cover 213 is provided with a second wire passing hole 2131 penetrating in the axial direction, so that the electrical components 212 inside the electrical housing 211 are electrically connected to the external wires outside the electrical housing 211 . The number of the second wire passing holes 2131 can be two, three or four or more.

In the embodiment of the present invention, the fixing base 200 also has a mounting hole 270 , which can be arranged along the axis and located on the periphery of the first outer edge portion 250 , for example, on the periphery of the second combining portion 230 . The number of mounting holes 270 may be three, four or more, and are evenly distributed along the circumferential direction. Certainly, the installation hole 270 may also be provided not on the periphery of the first outer edge portion 250 , but on the first outer edge portion 250 , or on the first main body portion 240 .

The first electrical connection part 210 may include a first receiving groove 1141 , a second receiving groove 1142 and a third receiving groove 1143 which are mutually insulated from outside to inside. Obviously, these receiving grooves are provided through the electrical housing 211 . Each receiving groove has a coupling portion 125 of a connecting terminal. Correspondingly, the connecting base 300 has a first conductive terminal 311 , a second conductive terminal 312 and a third conductive terminal 313 from outside to inside.

The fixing base 200 of the third embodiment of the present invention has been introduced above, and the connection base 300 matching the fixing base 200 of the third embodiment of the present invention will be introduced below in combination with the above fixing base 200 .

As shown in FIG. 17 , the connection base 300 includes a second electrical connection part 310 and a third joint part, the third joint part is arranged along the axis and is arranged coaxially with the second electrical connection part 310 around the rotation axis 10, and the third joint part includes First protrusions 321 , at least two first protrusions 321 are arranged along the axis and protrude toward the fixing base 200 , the first protrusions 321 include a second engagement surface 3211 , and the second engagement surface 3211 Facing the fixing base 200, the first protrusion 321 is suitable for sliding into or out of the installation groove 221 of the fixing base 200 through the opening end 2211 of the fixing base 200, and the slidable depth is limited by the limiting structure 2213, so that The second engaging surface 3211 abuts against the first engaging surface 2212 .

In the embodiment of the present invention, the connecting base 300 may further include a fourth combining portion, which is disposed along the circumferential direction and used for mating and connecting with the second combining portion 230 of the fixing base 200 . Wherein, the fourth combining portion may include second engaging grooves 332 , at least two second engaging grooves 332 are disposed on the top end portion 341 and located on the inner circle of the first protrusion 321 .

The third combining portion is disposed along the circumferential direction and located on the outer periphery of the second electrical connecting portion 310 . As a variation, the second electrical connection part 310 may also be disposed on the outer periphery of the fourth combination part along the circumferential direction; or the second electrical connection part 310 may surround between the third combination part and the fourth combination part along the circumferential direction.

After the fixed seat 200 is aligned with the connecting seat 300, it rotates relatively around the rotation axis 10, and the anti-retraction protrusion 2321 on the second joint part 230 of the fixed seat 200 can slide into the second locking groove 332, thus realizing The circumferential limit of the fixing seat 200 and the connecting seat 300 , and the deformation of the free end 232 of the second coupling portion 230 also exert an elastic force in one axial direction on the connecting seat 300 . Wherein, the second locking groove 332 may be disposed on the surface of the top end portion 341 facing the fixing base 200 instead of penetrating through the top end portion 341 .

The connecting seat 300 may further include a second outer edge portion 350 surrounding the outer periphery of the second main body portion 340 . Wherein, the second main body portion 340 further includes a top end portion 341, and the top end portion 341 extends along a radial surface, and the third joint portion can also be arranged on the second outer edge portion 350, and can be connected to the top end portion 341 in a radial direction. . Relative to the top end portion 341 , the second electrical connection portion 310 is disposed away from the fixing base 200 .

After the connecting base 300 and the fixed base 200 are in the same line, when the connecting base 300 is driven to rotate relative to the fixed base 200 in one direction, the stop protrusion 2321 of the free end 232 of the second joint part 230 abuts against the top end 341 of the top end 341 , so that the free end 232 moves away from the connecting seat 300, the free end 232 deforms relative to the fixed end 231 and exerts an axial elastic force on the connecting seat 300, and the moment when the stop protrusion 2321 slides into the second engagement groove 332, The user can hear the click sound, the surface stop protrusion 2321 slides into the second engagement groove 332, and the deformation of the free end 232 relative to the fixed end 231 decreases (the axial elastic force applied to the connecting seat 300 decreases), At the same time, the positive and negative two directions in the circumferential direction are realized between the second locking groove 332 and the anti-retraction protrusion 2321, so as to avoid the positive and negative two directions of the fixed seat 200 and the connecting seat 300 in the circumferential direction without obvious external force. turn in one direction. When it is necessary to separate the fixing base 200 from the connecting base 300 , the connecting base 300 is rotated in the opposite direction to the mating connection, and the user can also hear the clicking sound when the stop protrusion 2321 slides out of the second engagement groove 332 .

In addition, in the lamp fixing device 400 of the third embodiment of the present invention, the structures on the first electrical connection part 210 and the second electrical connection part 310 including the receiving grooves and conductive terminals can refer to the receiving grooves and conductive terminals in the second embodiment of the present invention. The structure of the terminal will not be repeated here.

The lamp fixing device 400 provided by the embodiment of the present invention is suitable for a lamp body whose radial dimension is larger than 650 mm.

As shown in FIG. 18 and FIG. 19 , the connecting base 300 is connected with the lamp body to form a lamp body assembly 500 , and the lamp body assembly 500 is mated and connected with the fixing base 200 to form a lighting device 600 . Moreover, the lamp body assembly 500 can seal the light distribution element 513 or the lampshade with the light source module 512 and the power supply module 511, and the sealing enclosure can make the light distribution element 513 or the lampshade undetachably cover the light source module 512 and the power supply module 511. , to prevent foreign objects such as mosquitoes from entering the light source cavity and affecting the light emission.

Example 4

Embodiment 4 of the present invention provides a lamp fixing device 400, which is a further limitation of the lamp fixing device 400 in Embodiment 2, and may not have the first electrical connection part 210 in Embodiment 2, or may have a different The electrical structure of the first electrical connection part 210 in 2.

Embodiment 4 of the present invention further details the first joint part 220 and the second joint part 230 in the fixing base 200 , and the third joint part and the fourth joint part in the connection base 300 .

The installation groove 221 in the first coupling portion 220 includes an open end 2211 , a first clamping surface 2212 and a limiting structure 2213 sequentially arranged along a circumferential direction, and the circumferential direction is the direction in which the fixed base 200 is rotationally connected to the connecting base 300 same.

In addition, the first coupling part 220 may also include a sliding opening 222, which extends in the circumferential direction (around the rotation axis 10), is coaxially arranged with the first engaging surface 2212, and communicates with the first engaging surface 2212 and the first engaging surface 2212 radially. The accommodating cavity, and the open end 2211 and the limiting structure 2213 are communicated, so that when the connecting base 300 is close to the accommodating cavity of the fixed base 200, in order to connect the two, the connecting base 300 rotates around the fixed base 200 along the rotation axis 10 , the first protrusion 321 on the connecting seat 300 slides from the opening end 2211 along the sliding opening 222 until the first protrusion 321 abuts against the limiting structure 2213, so that the fixing seat 200 and the connecting seat 300 can use the first joint part 220 and the third joint are more reliably connected together. Of course, as a modification, the first joint part 220 may not start to slide the opening 222, and the slidable stroke of the first protrusion 321 in the installation groove 221 is limited, so that the first joint part 220 and the third joint part Binding strength is limited.

As shown in FIG. 10 , the sliding opening 222 can be disposed on the outer periphery of the first clamping surface 2212 . At this time, correspondingly, as shown in FIG. 12 , the first protrusion 321 on the connecting seat 300 may extend radially inward from the side wall 342 of the inner ring. Moreover, the first protrusion 321 on the connecting seat 300 can be arranged flush with the side wall 342 of the inner ring on the radial plane.

The second coupling part 230 on the fixing base 200 has a free end 232. In order to improve the deformation capability of the free end 232, as shown in FIG. The reinforcement hole 2323 may be a blind hole or a through hole. Specifically, the deformation enhancing hole 2323 may be disposed on the first locking groove 2222 .

In order to properly guide the first protrusion 321 of the connecting seat 300, a transition slope area 2215 is also included between the opening end 2211 and the first butt joint surface 2212, obviously the transition slope area 2215 is located between the opening end 2211 and the elastic rib 22121 between.

The connection base 300 matched with the fixing base 200 is introduced below, and the connection base 300 is a further definition of the connection base 300 in the second embodiment.

The second main body portion 340 may include an inner ring side wall 342, and the second outer edge portion 350 may include an outer ring side wall 351, both the outer ring side wall 351 and the outer ring side wall 342 extend in the axial direction, and both surround and form a sleeve. Connect groove 360. The first protrusion 321 can extend radially inward from the inner ring side wall 342 , and the second protrusion 331 can extend from the outer ring side wall 351 in an axial direction close to the fixing seat 200 .

Example 5

Embodiment 5 of the present invention provides a lamp fixing device 400, which is a further limitation of the lamp fixing device 400 in Embodiment 3, and may not have the first electrical connection part 210 in Embodiment 3, or may have a different The electrical structure of the first electrical connection part 210 in 3.

Embodiment 5 of the present invention further describes in detail the first joint part 220 and the second joint part 230 in the fixing base 200 , and the third joint part and the third joint part in the connection base 300 . Since the lamp fixing device 400 of Embodiment 5 of the present invention can be a modification of Embodiment 4, the differences relative to Embodiment 4 will be mainly introduced below.

As shown in FIG. 16 , the first engaging surface 2212 is disposed on the outer periphery of the sliding opening 222 . At this time, correspondingly, the first protrusion 321 on the connecting seat 300 may be connected to the first main body part 240 (bottom part 241), specifically connected to the periphery of the first main body part 240 in the radial direction, and the first The orthographic projection of the protrusion 321 along the axial direction is located on the first outer edge portion 250 .

Therefore, the first clamping surface 2212 is located at the outer end of the sliding opening 222. At this time, the orthographic projections of the opening end 2211, the first clamping surface 2212 and the limiting structure 2213 in the axial direction may not overlap with the first main body portion 240, thus The open end 2211 is not located in the receiving space formed by the bottom end portion 241 and the first side wall 260 , that is, the first combining portion 220 is not located on the first main body portion 240 , but is located on the first outer edge portion 250 . In order to allow the first protrusion 321 of the connection base 300 to enter the installation groove 221 , the first combining portion 220 further includes a guide opening 223 . The guide opening 223 is axially penetrating and located on the same circumference as the mounting groove 221 . Relative to the limiting structure 2213 , the guide opening 223 is disposed close to the opening end 2211 and communicates with the opening end 2211 . The first protrusion 321 of the connecting seat 300 is axially aligned with the guide opening 223 and then approaches the fixed seat 200. After the first protrusion 321 and the opening end 2211 are located on the same radial plane, the connecting seat 300 is rotated, and the first protrusion 321 Rotate along the sliding opening 222 and abut against the limiting structure 2213 .

In addition, relative to the first clamping surface 2212 , the anti-retraction portion 2214 is disposed away from the connecting seat 300 . Moreover, in the direction from the first engaging surface 2212 to the opening end 2211 , the axial dimension of the backstop portion 2214 decreases gradually. The stop portion 2214 can be wedge-shaped, and the tip of the wedge faces toward the opening end 2211 .

The connection base 300 matched with the fixed base 200 is introduced below. The connection base 300 is a further limitation of the connection base in Embodiment 3. The differences between the connection base 300 in this embodiment and the connection base 300 in Embodiment 4 are: The first projection 321 of the connection seat 300 is located on the second outer edge portion 350 in an axial orthographic projection, and is radially connected to the second main body portion 340 , specifically, to the top end portion 341 .

Wherein, there may be at least two first protrusions 321, which are uniformly distributed along the circumferential direction.

Example 6

Embodiment 6 of the present invention provides a connection base 300 , which may be a further limitation of the connection base 300 in Embodiment 2 of the present invention, or a further limitation of the connection base 300 in Embodiment 3 of the present invention.

As shown in FIG. 11 and FIG. 12 , or FIG. 17 , Embodiment 6 of the present invention provides a connection base 300 for mating connection with a fixing base 200 that can be arranged on an installation base. The connection base 300 includes a top end portion 341 and a second electrical connection portion 310 . Relative to the top end portion 341, the second electrical connection portion 310 is arranged away from the fixing base 200, and the top end portion 341 can be arranged opposite to the bottom end portion 241 on the fixing base 200. At the same time, the second electrical connection portion 310 is connected to the first electrical connection portion 210 are embedded and docked with each other to realize electrical connection. The connection base 300 also includes a power storage cavity, which is disposed on the side of the top end 341 away from the fixing base 200 , and the height of the power storage cavity for accommodating the power module 511 is equivalent to that of the second electrical connection part 310 in the axial direction. Therefore, compared with the connection base 300 stacked with the power supply receiving cavity and the second electrical connection part 310, the thickness of the connection base 300 in the embodiment of the present invention can be thinner, thereby solving the problem of setting the fixing base 200 and the connection base 300 in the lighting device 600. After solving the problem of thicker thickness, the connection base 300, the lamp body assembly 500, the lamp fixing device 400 and the lighting device 600 can be made thinner and lighter.

In order to further realize lightness and thinness, the connection base 300 may include a light source receiving cavity, and the height of the light source receiving cavity and the power supply receiving cavity in the axial direction are equivalent.

The connection seat 300 may further include a second main body portion 340 and a second outer edge portion 350 , and the second outer edge portion 350 is disposed on the outer periphery of the second main body portion 340 .

Wherein, the light source accommodating chamber can be arranged on the second outer edge portion 350, and the power accommodating chamber is arranged on the second main body portion 340, since the power accommodating chamber is arranged on the side of the top end portion 341 away from the fixing seat 200, therefore, the power accommodating chamber It is also disposed on the top end portion 341 , in other words, the second main body portion 340 includes the top end portion 341 . As a modification, the light source receiving cavity can be arranged on the second main body portion 340, at this time, the second outer edge portion 350 includes the top end portion 341, and the power supply receiving cavity is arranged on the side of the top end portion 341 away from the fixing base 200, that is, the power supply is accommodated. The cavity is disposed on the side of the top end portion 341 away from the fixing seat 200 , and the power supply cavity is also disposed on the second outer edge portion 350 . As another variation, the light source housing cavity can also be arranged on the side of the top end 341 away from the fixing seat 200. Obviously, the top end 341 can belong to the second main body 340 or the second outer edge 350, that is, the light source The receiving cavity and the power supply receiving groove can be located on the second main body part 340 at the same time, and can also be located on the second outer edge part 350 at the same time.

In order to realize the mechanical connection between the connection base 300 and the fixed base 200, the connection base 300 may further include a third joint portion, the connection base 300 may include a third joint portion, and the third joint portion may be disposed on the second main body portion 340 or on the second outer edge portion 350 . The second body part 340 may include a top end part 341 . Relative to the top end part 341 , the third joint part may be disposed close to the fixing base 200 to facilitate the mechanical connection between the third joint part and the first joint part 220 on the fixing base 200 . Wherein, the third joint part can be arranged on the second main body part 340, for example, it is arranged on the side of the top end part 341 facing the fixing seat 200, and is arranged toward the fixing seat 200 (corresponding to the fixing seat 200 of the above-mentioned embodiment 2). The joint portion can also be disposed on the second outer edge portion 350 and radially connected to the top end portion 341 (corresponding to the fixing seat 200 of the third embodiment above).

As a modification, the connecting base 300 may not include the second outer edge portion 350, but the lamp housing of the lamp body is connected to the second main body portion 340 of the connecting base 300, and the lamp housing surrounds the second main body portion 340 in a circular shape. set, and a light source accommodation cavity is set on the lamp body. Of course, the height of the light source receiving chamber, the power receiving chamber, and the second electrical connection part 310 in the axial direction is still equivalent, and the light distribution element 513 is sealed and connected to the edge of the lamp housing of the lamp body, so that the light source module 512, the power module 511 and the second electrical connection part 310 are connected together. The two electrical connection parts 310 are sealed in the space surrounded by the light distribution element 513 and the lamp housing.

Therefore, in the embodiment of the present invention, the light source accommodating cavity, the voltage accommodating cavity, and the second electrical connection portion 310 are all arranged at positions with the same axial height on the connecting base 300, thereby effectively controlling the arrangement of the light source on the connecting base 300. The thickness dimension behind the module 512 and the power module 511 is to achieve the purpose of thinning.

In order to make the structure of the connection base 300 compact, the height positions of the conductive terminals on the connection base 300 are the same; correspondingly, the depth positions of the receiving grooves on the fixing base 200 are the same.

Further, the embodiment of the present invention also provides a lamp body assembly 500, the lamp body assembly 500 includes the above-mentioned connecting seat 300, and a lamp body. The lamp body can have a power module 511 , obviously, the power module 511 can be accommodated in the accommodation cavity on the connection base 300 .

In order to make it more effective and thinner, the end surface of the power module 511 facing away from the fixing seat 200 can be flush with the end surface of the second electrical connection part 310 facing away from the fixing seat 200. The two electrical connection parts 310 are arranged flush with the end surfaces close to the fixing seat 200 . In other words, the power module 511 and the second electrical connection portion 310 may be disposed flush with each other on a radial plane.

A light source module 512 is also arranged on the lamp body, and the light source module 512 includes a light source board and a light emitting unit. 340 , so that the heat of the light source module 512 can be quickly dissipated through the second main body 340 .

The lamp body can further include a light distribution element 513 , which covers the power module 511 , the light source module 512 and the second electrical connection part 310 , and is connected to the edge of the second outer edge part 350 of the connection base 300 . The connection method can be a sealed connection, that is, the light distribution element 513 is sealed to cover the light source module 512, the power module 511 and the second electrical connection part 310, thereby preventing mosquitoes from flying into the light source receiving cavity and affecting the light distribution effect. The light distribution element 513 may be a lampshade, a diffusion plate, and the like.

Apparently, in the lamp fixing device 400 having the above-mentioned connecting base 300, the first electrical connection part 210 of the fixing base 200 is connected with the second electrical connecting part 310 of the connecting base 300 to realize the electrical connection between the fixing base 200 and the connecting base 300, Moreover, the height positions of the first electrical connection part 210 and the second electrical connection part 310 are equivalent to the power supply receiving cavity in the axial direction. Therefore, after the fixing base 200 and the connecting base 300 are mated and connected, the lamp fixing device 400 can also have a smaller thickness.

The above descriptions are only examples of the present invention, and are not intended to limit the present invention. Various modifications and variations of the present invention will occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

A junction box, which includes: a housing, a terminal and a wire crimping elastic piece, the housing has a wire inlet, the connecting terminal and the wire crimping elastic piece are located in the housing with a gap formed between them In the wire clamping space, relative to the terminal, the wire crimping shrapnel is arranged close to the wire inlet;

The connecting terminal has a wire abutting portion and a mounting portion that are oppositely arranged, and a connecting plate, the connecting plate connects the bottom connecting portion of the wire and the mounting portion, the mounting portion is attached to the housing, and the connection The board is provided with an adjacent plug-in space and a hooking support part, the plug-in space runs through the connecting plate, and the hooking support part is set away from the wire abutting part and close to the installation part;

The wire crimping elastic piece has a free part and a fixed part. Relative to the fixed part, the free part is close to the wire abutment part and forms the wire clamping space between the wire abutment part and the wire abutment part. The part includes a hooking part, and the hooking part is supported by the hooking support part after passing through the insertion space from one side of the wire inlet.
The junction box according to claim 1, wherein the wire abutting portion is located on a side of the connecting plate away from the wire inlet, and the free portion partially penetrates into the plug-in space and abuts under normal conditions. The wire abutment part is connected to the wire abutting part, and the wire clamping space is formed by the free part and the wire abutment part.
The junction box according to claim 1, wherein the installation part includes a installation surface, and the installation surface is attached to the inner wall of the housing and faces away from the abutting part of the wire; the housing has a pressing port and A pressing member, the pressing port runs through the inside and outside of the housing, the pressing member is movably arranged on the pressing port along the axial direction of the pressing port, and the pressing member and the pressing port are arranged facing away from the installation surface ; relative to the fixed part, the free part is arranged close to the pressing port; the pressing part abuts against the free part and penetrates into the housing under the action of an external force to drive the free part away from the wire to abut against department.
The junction box according to claim 3, wherein the axis of the wire inlet and the axis of the press opening are perpendicular to each other; the wire pressing elastic piece further includes a base, and the base includes an arc bending area, a first A transition area and a second transition area, the first transition area is connected between the arc bending area and the fixed part, and the second transition area is connected to the free part of the arc bending area Between; the first transition zone is set opposite to the second transition zone, and the extension surfaces of the first transition zone, the second transition zone and the free part are all inclined, from the installation part to the In the direction of the press opening, the first transition area, the second transition area and the free portion are gradually away from the wall surface where the wire inlet is located.
The junction box according to claim 4, wherein the connecting plate is arranged obliquely relative to the installation surface in the housing, and the connecting plate gradually approaches the inlet from the installation part to the direction of the pressing port. The wall where the line opening is located.
The junction box according to claim 4, wherein the connection terminal further includes a positioning portion, the positioning portion extends from the wire abutting portion toward the wall where the wire inlet is located, and abuts against the inside of the housing wall.
The junction box according to claim 6, wherein the junction box includes at least two connection terminals arranged side by side, and the connection direction of at least two connection terminals is the width direction;

The free part includes a thin and narrow area and a thick and wide area. Relative to the thin and narrow area, the thick and wide area is arranged close to the wire inlet and away from the wire abutment part, and the thin and narrow area penetrates into the In the insertion space, the thick and wide area limits the penetration depth of the thin and narrow area, and is located outside the insertion space and is driven by external force to deform the free part. The extension surface of the thick and wide area parallel to the axial direction of the inlet;

The width dimension of the positioning portion is smaller than the width dimension of the thick region; the pressing member has a pressing foot extending toward the free portion, and the pressing foot extends toward the free portion and abuts against the thick wide area and keep a distance from the positioning abutment part.
The junction box according to claim 5, wherein the connection terminal further comprises a coupling portion and a strain portion, the strain portion connects the installation portion and the coupling portion, and the strain portion is away from the installation portion The direction of the mounting surface extends.
A fixing base, comprising a first main body, and the junction box according to any one of claims 1-8, the junction box is connected to the first main body.
A lamp fixing device, comprising a connecting seat connected to the lamp body and the fixing seat according to claim 9, the connecting seat is mated and connected with the fixing seat.