REPLACEABLE ELECTRICALLY POWERED PANEL LAMP

Abstract

A replaceable power supply panel lamp comprising: - a lamp body (10) having a rear face that is recessed to form a housing cavity (12), and a first side wall of the housing cavity (12) having at least one first elastic contact strip (11); - a power supply module (20) placed in the housing cavity (12), a rear face of the power supply module (20) not protruding from the rear face of the lamp body (10), and a first side wall of the power supply module (20) having at least one second elastic contact strip (21) corresponding to the first elastic contact strip (11), in order to achieve electrical conduction; and - at least one connecting element (30), the connecting element (30) being used to connect the power supply module (20) to the lamp body (10). Figure for the abbreviation: Fig. 2

Description

Title of the invention: REPLACEABLE POWERED PANEL LAMP technical field

[0001] The present application falls within the field of lighting technology, in particular concerning a panel lamp with a replaceable power supply.

[0002] TECHNICAL CONTEXT

[0003] Existing surface-mounted panel lamps mainly adopt a power supply integrated inside the lamp body, which makes replacing the power supply module difficult and maintenance of the power supply module inconvenient; once the power supply module is mounted in the lamp body, it is connected to the lamp body in one of two ways: (1) The power supply module is connected to the lamp body via wires, and the cost of such a structure is high; (2) The power supply module is connected to the lamp body via PIN pin terminals, and such a connection structure often causes a problem of failure of the PIN pin insertion during disassembly and causes poor contact;

[0004] When electrically connecting the power supply module to the lamp body in the two ways above, an insulation solution is adopted for the internal circuit in order to meet the safety specifications of the power supply module, the output voltage meets specific conditions (such as safety conditions), and the cost of the product is high. DISCLOSURE OF THE INVENTION

[0005] The present application provides a replaceable power supply panel lamp, intended to solve the technical problems of the prior art, such as the integration of the power supply of the panel lamp, the inconvenient replacement and maintenance, and many disadvantages of the means of connection between the power supply and the lamp body.

[0006] To achieve the above objective, the technical solution of the present application is as follows: a replaceable power supply panel lamp is provided, which includes a lamp body, a power supply module and at least one connection element.

[0007] A rear face of the lamp body is hollowed out to form a receiving cavity, and a side wall of the receiving cavity is provided with at least one first elastic contact blade.

[0008] The power supply module is placed in the housing cavity, a rear face of the power supply module does not protrude from the rear face of the lamp body, and a side wall of the power supply module is provided with at least one second elastic contact blade corresponding to the first elastic contact blade, in order to achieve electrical conduction; and the connecting element is used to connect the power supply module to the lamp body.

[0009] In one possible embodiment, the side wall of the power supply module is provided with a plurality of grooves, a second elastic contact blade is disposed in each groove and the number of first elastic contact blades is equal to the number of second elastic contact blades.

[0010] In one possible embodiment, each second elastic contact blade rests against an underside of a groove, the upper side wall of each groove is provided with a stop and the stop is used to limit one side of the second elastic contact blade close to the first elastic contact blade.

[0011] In one possible embodiment, a cross-section of each stop has a right-angled triangle shape, the first leg of the right-angled triangle corresponds to a first right-angled side of the stop, the first right-angled side is fixedly connected to the upper side wall of the groove, the second leg of the right-angled triangle corresponds to a second right-angled side of the stop, and the second right-angled side faces the second elastic contact blade and is used to limit the second elastic contact blade.

[0012] In one possible embodiment, a top of the side wall of the receiving cavity provided with the first elastic contact blade is provided with a limiting plate, the limiting plate is located above the first elastic contact blade, and a top of the power supply module is hollowed out to form a limiting groove corresponding to the limiting plate.

[0013] In one possible embodiment, a lower face of the limiting groove is a downward inclined face.

[0014] In one possible embodiment, a base of the receiving cavity is provided with a recessed groove, and a base of the power supply module is recessed into the recessed groove.

[0015] In one possible embodiment, the power supply module is provided with at least one positioning cavity and at least one through hole corresponding one-to-one with the positioning cavity and communicated With this, at least one fixed mounting column is provided in the receiving cavity, each mounting column is located in a positioning cavity and is coaxial with a through hole corresponding to the positioning cavity, and each connecting element passes through a through hole to connect the mounting column corresponding to the through hole.

[0016] In one possible embodiment, at least one side wall of the lamp body housing cavity is provided with at least one mounting groove communicated with the housing cavity, at least one side wall of the power supply module is provided with at least one mounting block to extend into the mounting groove, and each connecting element is connected to a mounting block and to the lamp body to make the connection between the lamp body and the power supply module.

[0017] In one possible embodiment, a lower face of each mounting groove is higher than the upper face of the housing cavity, and the upper face of each mounting groove is flush with the rear face of the lamp body, and an opening is formed in the rear face of the lamp body; alternatively, the lower face of each mounting groove is flush with a lower face of the housing cavity, and the upper face of each mounting groove is spaced away from the rear face of the lamp body, and no opening is formed in the rear face of the lamp body.

[0018] Compared with existing techniques, the replaceable power supply panel lamp provided by this application has the following beneficial effects: on the one hand, the power supply module is mounted in the housing cavity, and the housing cavity is formed on the rear face of the lamp body, which allows the power supply module to be exposed and facilitates replacement and maintenance; on the other hand, the first and second elastic contact blades are used to make an electrical connection, such a connection structure is inexpensive, stable and reliable. DESCRIPTION OF THE FIGURES

[0019] [Fig. 1] is a top structural diagram of the replaceable power supply panel lamp provided in embodiment I of this application;

[0020] [Fig.2] is a structural diagram in cross-section along line AA of [Fig.1];

[0021] [Fig.3] is an enlarged view of C of [Fig.2];

[0022] [Fig.4] is a view of [Fig.3], in which the power supply module is withdrawn;

[0023] [Fig.5] is a view of [Fig.3], in which the lamp body is removed;

[0024] [Fig.6] is a structural diagram in cross-section along line BB of [Fig.1];

[0025] [Fig.7] is an enlarged view of D of [Fig.6];

[0026] [Fig.8] is a view of [Fig.7], in which the power supply module is withdrawn;

[0027] [Fig.9] is a view of [Fig.7], in which the lamp body is removed;

[0028] [Fig. 10] is a three-dimensional structural diagram of the lamp body used in the method of implementation I of this request;

[0029] [Fig. 11] is a three-dimensional structural diagram I of the power supply module used in embodiment I of the present application;

[0030] [Fig. 12] is a three-dimensional structural diagram II of the power supply module used in embodiment I of the present application;

[0031] [Fig. 13] is a top structural diagram of the replaceable power supply panel lamp provided in embodiment II of this application;

[0032] [Fig. 14] is a three-dimensional structural diagram of the lamp body used in embodiment II of this application;

[0033] [Fig. 15] is a top structural diagram of the power supply module used in embodiment II of this application;

[0034] [Fig. 16] is a top structural diagram of the replaceable power supply panel lamp provided in embodiment III of this application;

[0035] [Fig. 17] is a three-dimensional structural diagram of the lamp body used in embodiment III of this application;

[0036] [Fig. 18] is a three-dimensional structural diagram of the power supply module used in embodiment III of this application.

[0037] In the figures, the reference numerals are as follows: 10-lamp body; 11-first elastic contact blade; 1101-extension portion; 12-receiving cavity; 13-limiting plate; 14-mounting column; 15-recessed groove; 16-mounting groove; 20-Power supply module; 21-Second elastic contact blades; 22-Limiting groove; 23-Groove; 24-Stop; 2401-First rectangular side; 2402-Second rectangular side; 25-Fixing blade; 26-Insertion blade; 27-Positioning cavity; 2701-Positioning cavity; 28-Through hole; 29-Mounting block; 30 - connection element. DETAILED DESCRIPTION OF THE INVENTION

[0038] The technical problems to be solved, the technical solution, and the beneficial effects of this application will become clearer upon reading the following detailed description of this application with reference to the attached figures and methods of implementation. It will be understood that the implementation methods are only to illustrate the present request, rather than to limit the present request.

[0039] In this application, unless otherwise clearly specified, terms such as "first," "second," or "third" are used to distinguish similar objects, rather than to describe a specific order. In this application, the terms "upper," "lower," "top," and "bottom" indicate directions and positions that are identical to the directions and positions of the panel lamp actually mounted; the term "front" refers to a light-emitting side face of the panel lamp; and the term "back" refers to a shaded side face.Furthermore, other terms indicating directions and positions are also used; these terms are only to describe and facilitate the description of the technical solution of this application, instead of indicating or implying the specified directions or positions of the devices or elements concerned, or constructions and operations in the specified directions or positions, and therefore cannot be understood as unreasonable restrictions on the protection framework of this application.

[0040] In the present application, unless otherwise clearly specified, the terms "fixed connection" or "fixed connection" shall be interpreted broadly, that is to say, no manner of connection of displacement relation or relative rotation relation between two elements, i.e., non-removable fixed connections, removable fixed connections, integral connections or connections fixed by other devices or elements.

[0041] In this application, the use of the terms "include", "comprise" and their variants is to mean "including, but not limited to".

[0042] Embodiment I

[0043] With reference to Figures 1 to 12, a replaceable power supply panel lamp provided by this application comprises a lamp body 10, a power supply module 20, and at least one connection element 30. The rear face of the lamp body 10 is recessed to form a housing cavity 12, and a side wall of the housing cavity 12 is provided with at least one first elastic contact strip 11. The power supply module 20 is placed in the housing cavity 12, and the rear face of the power supply module 20 does not protrude from the rear face of the lamp body 10. A side wall of the power supply module 20 is provided with at least one second elastic contact strip 21 corresponding to the first elastic contact strip 11, in order to achieve electrical conduction.The connecting element 30 is used to connect the power supply module 20 and the lamp body 10 to achieve an assembly of the power supply module 20 and the lamp body 10.

[0044] It will be easily understood that the second elastic contact blade 21 is electrically connected to the internal circuit of the power supply module 20, and that the first elastic contact blade 11 is electrically connected to an electroluminescent module of the lamp body 10. Therefore, when the first elastic contact blade 11 comes into contact with the second elastic contact blade 21 and achieves electrical conduction, the power supply module 20 can power the lamp body 10 and cause a lighting element of the electroluminescent module to emit light.

[0045] For the panel lamp supplied in this embodiment, the assembly of the power supply module 20 and the lamp body 10 can be carried out by the following two simple steps: first, place the power supply module in the receiving cavity 12, adjust the position of the power supply module 20 so that the second elastic contact blade 21 disposed on the power supply module 20 comes into contact with the first elastic contact blade 11 disposed on the lamp body 10 and rests against it; second, connect the power supply module 20 to the lamp body 10 using the connecting element 30 to assemble the two.

[0046] Compared with existing techniques, the panel lamp provided in this embodiment has the following beneficial effects:

[0047] On the one hand, the power supply module 20 is placed in the housing cavity 12, and the housing cavity 12 is formed by the rear face recessed from the lamp body 10 and is exposed to the outside, it is very easy and convenient to remove the power supply module 20 from the housing cavity 12 and place the power supply module 20 in the housing cavity 12. Therefore, compared with lamps with power supplies integrated inside in existing techniques, the panel lamp provided in the present embodiment is more beneficial for the replacement and maintenance of the power supply;

[0048] On the other hand, the panel lamp provided in this embodiment uses a spring-blade structure for electrical connection; that is, the first spring-blade contact 11 and the second spring-blade contact 21 are used for electrical conduction. Compared to wire connections, such a structure is inexpensive, and compared to connections with pin terminals, it is not necessary to align the pin with a pin hole for insertion, effectively preventing insertion failure and poor contact. For the panel lamp provided in this embodiment, once the power supply module 20 is placed in the housing cavity 12, the first spring-blade contact 11 and the second spring-blade contact 21 can make contact with each other, thus securing the mounting and positioning of the 20 power supply module, thus achieving electrical conduction with ease of operation, stability and reliability of electrical connection.

[0049] Optionally, with reference to Figures 2 to 5 and [Fig. 11], a side wall of the power supply module 20 is provided with a plurality of grooves 23, a second elastic contact blade 21 is disposed in each groove 23; a number of first elastic contact blades 11 is equal to a number of second elastic contact blades 21 and is plural (for example a number of 3 in [Fig. 11]), the first elastic contact blades 11 correspond in a one-to-one manner to the second elastic contact blades 21.

[0050] The arrangement of the groove 23 provides protection for the second elastic contact blade 21. For example, in the independent process of transferring and transporting the power supply module 20, the second elastic contact blade 21 is located in the groove 23 instead of being exposed to the outside, which effectively prevents any accidental wear or damage to the second elastic contact blade 21.The various grooves 23 can be arranged to be independent of each other, which ensures that each first elastic contact blade 11 is in contact with only one second elastic contact blade 21 in the corresponding groove 23 when each first elastic contact blade 11 extends into the corresponding groove 23, so that the first elastic contact blade 11 and the second elastic contact blade 21 come into contact and connect in a one-to-one manner, thus achieving the electrical connection between the power supply module 20 and the lamp body 10.

[0051] Since the second elastic contact blade 21 is located in the groove 23, the first elastic contact blade 11 must extend into the groove 23 to make contact with the second elastic contact blade 21. By way of example, each first elastic contact blade 11 may have a structure extending towards the second elastic contact blade 21, for example, having an extension portion 1101 extending towards the second elastic contact blade 21, as shown in [Fig. 4]. The extension portion 1101 may be made of an elastic material. Once the power supply module 20 is placed in the housing cavity 12, the second elastic contact blade 21 can be butted against the extension portion 1101 and cause the extension portion 1101 to deform elastically.Thus, once the power supply module 20 is in place, the extension portion 1101 can still be butted against and bear against the second elastic contact blade 21, thereby improving the stability of the electrical connection and preventing electrical disconnection due to external factors such as vibrations. Furthermore, as shown in Figures 3 and 4, a free end of the extension portion 1101 can be bent to form an arc-shaped face facing the second elastic contact blade 21 and be used for [the following purpose]. to come into contact with the second elastic contact blade 21, which prevents wear of the second elastic contact blade 21 due to contact with points, thus extending the service life.

[0052] Optionally, with reference to Figures 3, 5 and 11, each second elastic contact blade 21 rests against an underside of a corresponding groove 23, and the upper side wall of each groove 23 is provided with a stop 24. The stop 24 is located on one side of the second elastic contact blade 21 close to the first elastic contact blade 11 and the stop 24 is used for limiting the end of travel. As shown in [Fig.5], the lower end of the stop 24 is lower than the upper end of the second elastic contact blade 21, and the upper end of the second elastic contact blade 21 enters a space formed between the stop 24 and the lower face of the groove 23, therefore, if the second elastic contact blade 21 moves in the direction away from the lower face of the groove 23, the second elastic contact blade 21 is blocked by the stop 24.That is to say, the stop 24 produces a limiting effect on the second elastic contact blade 21, in order to prevent the second elastic contact blade 21 from accidentally pressing against the lower face of the groove 23 for various reasons or even detaching from the groove 23, which ensures that the second elastic contact blade 21 is always in the predefined position and can properly make contact with the first elastic contact blade 11.

[0053] By way of example, each stop 24 has a triangular shape and a first rectangular side and a second rectangular side, an angle formed between the first rectangular side and the second rectangular side is 90 degrees, the first rectangular side is fixedly connected to the upper lateral wall of the corresponding groove 23, and the second rectangular side is used to limit the corresponding second elastic contact blade 21. In the present example, as shown in [Fig. 5], a cross-section of the stop 24 has a right-angled triangular shape, one leg of the right-angled triangle corresponds to the first rectangular side 2401 of the stop 24, the first rectangular side 2401 is fixedly connected to the upper lateral wall of the groove 23 (in [Fig. 5].5], the stop 24 is fully connected to the upper side wall of the groove 23, and the first rectangular side 2401 cannot be distinguished and is therefore represented by the dotted line); the other leg of the right triangle corresponds to the second rectangular side 2402 of the stop 24, and the second rectangular side 2402 faces the second elastic contact blade 21 and is used to limit the second elastic contact blade 21.

[0054] Furthermore, as shown in [Fig. 5], each stop 24 also has an inclined face, and this inclined face corresponds to the hypotenuse of the right triangle of the cross-section mentioned above. During the assembly of the module power supply 20, the inclined face of the stop 24 can guide the upper end of the second elastic contact blade 21, so that the second elastic contact blade 21 can be placed more easily in the groove 23 and fixed in a predefined position.

[0055] By way of example, as shown in Figures 3 and 5, the second elastic contact blade 21 is connected to a fixing blade 25, and the fixing blade 25 is located inside the power supply module 20 and is used to mount and fix the second elastic contact blade 21. An insertion blade 26 is formed on the fixing blade 25 by bending a portion of the material downwards, and the insertion blade 26 cooperates with an insertion hole in the power supply module 20 to achieve the fixing of the fixing blade 25 and the second elastic contact blade 21. The second elastic contact blade 21 and the fixing blade 25 can be formed integrally.

[0056] Optionally, with reference to Figures 3 to 5, 10 and 11, the top of the side wall of the housing cavity 12, which is provided with the first elastic contact blade 11, is provided with a limiting plate 13. The limiting plate 13 is located above the first elastic contact blade 11, and the top of the power supply module 20 is recessed to form a limiting groove 22 corresponding to the limiting plate 13. The upper face of the limiting plate 13 can be aligned with the rear face of the lamp body 10. The arrangement of the limiting plate 13 and the limiting groove 22 can make mounting the power supply module 20 more convenient.Once the power supply module 20 is placed in the housing cavity 12, the power supply module 20 slides in, the limiting groove 22 is brought into position with the limiting plate 13, allowing the limiting plate 13 to enter the limiting groove 22. At this point, the first elastic contact blade 11 makes contact with the second elastic contact blade 21, and then the power supply module 20 can be secured to complete the mounting of the power supply module 20. In addition, the limiting plate 13 has a limiting effect on the power supply module 20, so that the power supply module 20 can be better held in the housing cavity 12, thus making the connection between the power supply module 20 and the lamp body 10 more stable.The limiting plate 13 can fix one side of the power supply module 20 provided with the second elastic contact blade 21, therefore, the connecting element 30 can be arranged on one side of the power supply module 20 away from the second elastic contact blade 21. The limiting plate 13 and the connecting element 30 can both have a fixing effect on the power supply module 20. so that the power supply module 20 can be held in the housing cavity 12.

[0057] In order to allow the power supply module 20 to slide into the receiving cavity 12, the size of the receiving cavity 12 in the sliding direction is greater than the size of the power supply module 20 in the sliding direction.

[0058] Optionally, as shown in [Fig. 5], one lower face of the limiting groove 22 is inclined downwards, which facilitates the limiting plate 13 sliding in the limiting groove 22 when mounting the power supply module 20 in the housing cavity 12. Once the power supply module 20 is in place, the lower face of the limiting groove 22 is located below the limiting plate 13. When the mounting of the power supply module 20 is placed in the housing cavity 12, the edge of the limiting plate 13 entering the limiting groove 22 first can come into contact with the inclined lower face of the limiting groove 22, and this inclined lower face has a guiding effect on the limiting plate 13, so that the limiting plate 13 slides more easily in the limiting groove 22 to complete the mounting of the power supply module 20.

[0059] Optionally, with reference to [Fig. 10], the base of the housing cavity 12 is provided with a recess 15, and the base of the power supply module 20 is recessed into the recess 15. The shape of the recess 15 corresponds to that of the base of the power supply module 20. During the mounting of the power supply module 20, the power supply module 20 slides into the housing cavity 12, and once the base of the power supply module 20 is recessed into the recess 15, the power supply module 20 has reached a predefined position. That is to say, the recess 15 can achieve the positioning of the power supply module 20, making the mounting of the power supply module 20 more convenient.

[0060] Optionally, with reference to Figures 6 to 10 and [Fig. 12], the power supply module 20 is provided with at least one positioning cavity 27 and at least one through hole 28 communicated with the positioning cavity 27, and the positioning cavity 27 corresponds one-to-one with the through hole 28. At least one fixed mounting column 14 is provided in the receiving cavity 12. The positioning cavity 27, the through hole 28, and the column 14 are all used to mount the power supply module 20. Once the power supply module 20 is in place, each mounting column 14 is located in the corresponding positioning cavity 27 and is coaxial with the corresponding through hole 28. At this point, by inserting the connecting element 30 through the through hole 28 and connecting it to the mounting column 14, the mounting of the power supply module 20 can be achieved. In order to allow the power supply module 20 to slide into the receiving cavity 12, the size of the positioning cavity 27 in the sliding direction is larger than the size of the positioning column 14, so that the positioning column 14 can move within the positioning cavity 27. The positioning cavity 27 has a positioning hole 2701, as shown in [Fig. 9]. Once the power supply module 20 has slid into the intended position, the upper end of the mounting column 14 enters the positioning hole 2701, as shown in [Fig. 9].7] ; at this moment, the power supply module 20 is positioned and cannot continue to slide, and the mounting column 14 is coaxial with the through hole 28, and the connecting element 30 can pass through the through hole 28 and then be connected with the mounting column 14, thus achieving the connection between the power supply module 20 and the lamp body 10. .

[0061] By way of example, the connecting element 30 can be connected to the mounting column 14 by threading or insertion. When connected by threading, the connecting element 30 can be a screw and the mounting column 14 is provided with a corresponding internal threaded hole. When connected by insertion, the connecting element 30 can be a dowel and the mounting column 14 is provided with a corresponding insertion hole.

[0062] Embodiment II

[0063] Embodiment II provides a deformable connection structure between the power supply module 20 and the lamp body 10, and the other structures of embodiment II are essentially identical to those of embodiment I. In the present embodiment, with reference to Figures 13 to 15, at least one side wall of the housing cavity 12 of the lamp body 10 is provided with at least one mounting groove 16, and each mounting groove 16 is communicated with the housing cavity 12. At least one side wall of the power supply module 20 is provided with at least one mounting block 29, and the mounting block 29 is used to extend into the mounting groove 16. Each connecting element 30 is connected to a mounting block 29 and to the lamp body 10 to establish the connection between the power supply module 20 and the lamp body 10.

[0064] The number of mounting grooves 16 and the number of mounting blocks 29 are not limited here, and may be identical or not. By way of example, as shown in Figures 13 to 15, the number of mounting grooves 16 and mounting blocks 29 may be two, and the two mounting grooves 16 and the two mounting blocks 29 correspond to each other in a one-to-one manner. The side wall of the receiving cavity 12 on which the mounting groove 16 is located is not limited here. For example, as shown in [Fig. 14], both mounting grooves 16 can be formed on the side wall on which the first elastic contact blade 11 is located; moreover, the two mounting grooves 16 are situated on either side of the first elastic contact blade 11.

[0065] The shape of the mounting groove 16 corresponds to that of the mounting block 29. The shapes of the mounting groove 16 and the mounting block 29 are not limited here. By way of example, the shapes of the cross-sections of the mounting groove 16 and the mounting block 29 may be triangular or rectangular.

[0066] In this embodiment, as shown in [Fig. 14], the lower face of each mounting groove 16 is flush with the lower face of the housing cavity 12, and the upper face is spaced away from the rear face of the lamp body 10, with no opening formed in the rear face of the lamp body 10. The upper wall of each mounting groove 16 has a through hole for the connecting element 30. The mounting block 29 has an insertion hole or a threaded hole for connecting the connecting element 30. The connecting element 30 passes through the through hole formed in the upper wall of the mounting groove 16 and is connected to the mounting block 29 by insertion or threading to achieve the mounting or securing of the power supply module 20.

[0067] Embodiment III

[0068] In embodiment III, the positions of the mounting groove 16 and the mounting block 29 are different from those of embodiment II, and the other structures are essentially identical. In the present embodiment, with reference to Figures 16 to 18, the lower face of each mounting groove 16 is higher than the lower face of the receiving cavity 12, the upper face is flush with the rear face of the lamp body 10, and an opening is formed in the rear face of the lamp body 10. The bottom of each mounting groove 16 is provided with an insertion hole or a threaded hole for connecting the connecting element 30, and the mounting block 29 is provided with a through hole for the connecting element 30.The connecting element 30 passes through the through hole and is connected to the insertion hole or threaded hole formed at the bottom of the mounting groove 16 to achieve the mounting or fixing of the power supply module 20.

[0069] By way of example, as shown in Figures 16 to 18, in the present embodiment, the number of mounting grooves 16 may be two. The two mounting grooves 16 are formed on two opposite side walls of the receiving cavity 12, and the two side walls are adjacent to the side wall on which the first elastic contact blade 11 is disposed.

[0070] The embodiments below are only preferred and non-limiting embodiments; any modifications, equivalent replacements and improvements that comply with the spirit and principles of this application shall be included within the scope of protection of the present invention.

Claims

Demands

1. A panel lamp with a replaceable power supply, characterized in that it comprises: - a lamp body (10), a rear face of the lamp body (10) being hollowed out to form a receiving cavity (12), and a first lateral wall of the receiving cavity (12) being provided with at least one first elastic contact blade (11); - a power supply module (20), the power supply module (20) being placed in the receiving cavity (12), a rear face of the power supply module (20) not protruding from the rear face of the lamp body (10), and a first lateral wall of the power supply module (20) being provided with at least one second elastic contact blade (21) corresponding to the first elastic contact blade (11), in order to achieve electrical conduction;and - at least one connecting element (30), the connecting element (30) being used to connect the power supply module (20) to the lamp body (10).;

2. A replaceable power supply panel lamp according to claim 1, characterized in that the first side wall of the housing cavity (12) has several first elastic contact blades (11), and the first side wall of the power supply module (20) has several second elastic contact blades (21), the number of first elastic contact blades (11) is equal to the number of second elastic contact blades (21), there is a one-to-one correspondence between the first elastic contact blades (11) and the second elastic contact blades (21), such that each first elastic contact blade (11) is associated with a single second elastic contact blade (21), and each second elastic contact blade (21) is associated with a single first elastic contact blade (11), the first side wall of the power supply module (20) is provided with a plurality of grooves (23),and a single second elastic contact blade (21) is disposed in each groove (23).

3. A replaceable electrically powered panel lamp according to claim 2, characterized in that an upper side wall of each groove (23) is provided with a stop (24) configured to to block the second elastic contact blade (21) disposed in said groove (23) so that said second elastic contact blade (21) remains in a predefined position.

4. A replaceable electrically powered panel lamp according to claim 3, characterized in that the stop (24) has a right-angled triangular cross-section comprising two orthogonal sides forming a right angle; one of the orthogonal sides is fixed to the upper side wall of the groove (23), while the other orthogonal side faces the second elastic contact blade (21) and forms the surface against which the end of the second elastic contact blade (21) abuts to limit its movement in the groove (23).

5. A replaceable power supply panel lamp according to claim 2, characterized in that, when the rear face of the lamp body (10) is oriented upwards, an upper part of the first side wall of the housing cavity (12) is provided with a limiting plate (13), the limiting plate (13) is located above the plurality of first elastic contact blades (11), and when the rear face of the power supply module (20) is oriented upwards, an upper part of the power supply module (20) is hollowed out to form a limiting groove (22) corresponding to the limiting plate (13).

6. A replaceable power supply panel lamp according to claim 5, characterized in that a lower face of the limiting groove (22) is a downward inclined face, which facilitates the limiting plate (13) to slide in the limiting groove (22) when mounting the power supply module (20) in the housing cavity (12).

7. A replaceable power supply panel lamp according to claim 1, characterized in that a bottom of the housing cavity (12) is provided with a recess groove (15), and a bottom of the power supply module (20) is recessed into the recess groove (15).

8. A replaceable power supply panel lamp according to claim 1, characterized in that the power supply module (20) is provided with at least one positioning cavity (27) and at least one through hole (28) communicating with the at least one positioning cavity (27), each cavity of positioning (27) corresponding in a one-to-one manner to a through hole (28), the receiving cavity (12) has at least one fixed mounting column (14), each mounting column (14) corresponding in a one-to-one manner to a positioning cavity (27), each connecting element (30) being arranged so as to be connected to the mounting post (14), after the introduction of the mounting post (14) into the corresponding positioning cavity (27), in order to make the connection between the power supply module (20) and the lamp body (10).

9. A replaceable power supply panel lamp according to claim 1, characterized in that at least one side wall of the housing cavity (12) is provided with at least one mounting groove (16), each mounting groove (16) communicates with the housing cavity (12), at least one side wall of the power supply module (20) is provided with at least one mounting block (29), each mounting block (29) being configured to extend into one of said mounting grooves (16) and to be connected by means of at least one of said connecting element (30) to the lamp body (10) to effect the connection between the power supply module (20) and the lamp body (10).

10. A replaceable power supply panel lamp according to claim 9, characterized in that, when the rear face of the lamp body (10) is oriented upwards, a lower face of each mounting groove (16) is higher than a lower face of the housing cavity (12), and an upper face of each mounting groove (16) is flush with the rear face of the lamp body (10), and an opening is formed in the rear face of the lamp body (10); alternatively, the lower face of each mounting groove (16) is flush with the lower face of the housing cavity (12), and the upper face of each mounting groove (16) is spaced from the rear face of the lamp body (10), and no opening is formed in the rear face of the lamp body (10).

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