Lamp panel with patch type temperature control protection device
By adopting chip-type temperature control protection devices on the lamp board and using the opening and closing structure of bimetallic sheet and contacts, the existing temperature protection devices have large space, high cost and poor thermal conduction efficiency, realizing space saving and Cost-reduced temperature protection effect.
Patent Information
- Application Number
- CN202420444514.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-07
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-07
AI Technical Summary
Existing lamp temperature protection devices occupy a large space, have high production costs, and have poor thermal conduction efficiency, which is difficult to effectively apply in narrow spaces such as projectors.
The chip-type temperature control protection device is adopted. By setting the chip-type temperature control protection device on the lamp board, the temperature protection is achieved using the bimetallic sheet and contact opening and closing structure, reducing space occupation and manual operation costs.
It achieves space saving, reduces production costs and improves heat conduction efficiency, and is suitable for the temperature protection of lamps in narrow spaces.
Smart Images
Figure CN222480416U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lamps, in particular to a lamp board with a patch type temperature control protection device. Background Art
[0002] Existing temperature protection devices for lamps are generally riveted temperature protection devices or plug-in temperature protection devices. Riveted temperature protection devices are separate entities and cannot be integrated with the products to be protected. Especially in the field of projectors, due to limited space and high heating temperature of the lamp board, existing temperature protection devices increase the space used and need to be fixed by locking screws or applying silicone grease to increase heat conduction efficiency; plug-in temperature protection devices have certain height restrictions and cannot be used in narrow spaces; the connection method is that riveted temperature protection devices use UL-certified electrical leads, which increases the cost of wires and sockets; riveted temperature protection devices increase the cost of manual wiring; plug-in temperature protection devices require manual insertion and then DIP furnace welding, which increases labor and machine operation costs. Utility Model Content
[0003] The utility model aims to provide a lamp panel with a patch-type temperature control protection device, so as to solve the technical problems that the existing temperature protection devices occupy a large space, have a high production cost and poor heat conduction efficiency.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A lamp board with a patch type temperature control protection device, characterized in that it includes a lamp board main body, on which a patch type temperature control protection device is arranged, the patch type temperature control protection device includes a shell, a bottom plate is fixedly arranged at the bottom of the shell, a bimetallic strip is fixedly arranged on the inner side of the shell, one end of the bimetallic strip is connected to the inner side of the shell and the other end is fixedly connected to a moving contact by an iron nail, a static contact is fixedly arranged on the inner side of the bottom plate, and the upper side of the static contact corresponds to the lower side of the moving contact.
[0006] According to a preferred technical solution, insulating paper is provided on the inner side of the housing below the bimetallic strip and above the static contact, an opening is provided in the middle of the insulating paper, and the moving contact and the static contact correspond to the positions of the opening.
[0007] According to a preferred technical solution, the moving contact and the static contact are connected to an external power source via a wire.
[0008] A preferred technical solution is a lamp board including the SMD temperature control protection device, characterized in that it also includes lamp beads, a temperature control protection device, a plug-in board and a welding plate, wherein the lamp beads are arranged on the lamp board body, the temperature control protection device is attached to the lamp board body, and the plug-in board and the welding plate are arranged on the side of the lamp board body.
[0009] According to a preferred technical solution, the lamp board, the lamp beads, the temperature control protection device, the plug board and the welding plate are connected in series through wires.
[0010] Compared with the prior art, the beneficial effects of the utility model are:
[0011] The utility model changes the original external or plug-in rivet-wire type temperature control protection device or plug-in type temperature control protection device into a lamp board with a patch type temperature control protection device; reduces the redundancy of sockets and wires; reduces costs and increases efficiency, and achieves the best of both worlds while reducing costs and improving factory production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the structure of the light board of the utility model;
[0013] Figure 2 This is a schematic diagram of the exploded structure of the temperature control protection device of Embodiment 1 of the utility model;
[0014] In the figure: 1. Shell; 2. Bottom plate; 3. Bimetallic strip; 4. Iron nail; 5. Moving contact; 6. Static contact; 7. Insulating paper; 8. Opening; 10. Lamp board body; 11. Lamp beads; 12. Temperature control protection device; 13. Plug-in board; 14. Welding plate. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0016] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0017] Embodiment 1
[0018] like Figure 1As shown, a lamp board with a patch-type temperature control protection device includes a lamp board body 10, and a patch-type temperature control protection device 12 is arranged on the lamp board 10. The patch-type temperature control protection device 12 includes a shell 1, a bottom plate 2 is fixedly arranged at the bottom of the shell 1, a bimetallic strip 3 is fixedly arranged on the inner side of the shell 1, one end of the bimetallic strip 3 is connected to the inner side of the shell 1 and the other end is fixedly connected to a moving contact 5 through an iron nail 4, and a static contact 6 is fixedly arranged on the inner side of the bottom plate 2, and the upper side of the static contact 6 corresponds to the lower position of the moving contact 5. An insulating paper 7 is arranged on the inner side of the shell 1 and located below the bimetallic strip 3 and above the static contact 6. An opening 8 is arranged in the middle of the insulating paper 7, and the moving contact 5 and the static contact 6 correspond to the position of the opening 8. The moving contact 5 and the static contact 6 are connected to an external power supply through a wire.
[0019] like Figure 2 As shown, it also includes a lamp bead 11, a temperature control protection device 12, a plug board 13 and a welding disk 14. The lamp bead 11 is arranged on the lamp board body 10, the temperature control protection device 12 is attached to the lamp board body 10, the plug board 13 and the welding disk 14 are arranged on the side of the lamp board body 10, and the lamp bead 11, the temperature control protection device 12, the plug board 13 and the welding disk 14 are connected in series through wires.
[0020] The utility model can more accurately respond to the temperature changes of the product that needs to be protected. It is connected in series on the light board circuit. When the designed temperature threshold is reached, the internal spring will pop open to cut off the circuit for protection; when the temperature drops to the designed recovery temperature, the light board will resume normal operation.
[0021] The lamp board body 10 needs to reserve a packaging position for the SMD temperature control protection device 12 on the board for use as a patch. The specific package needs to be made according to the SMD temperature control protection device 12 used (the package can be customized according to the temperature control device manufacturer's requirements based on the specific shape of the lamp board used). The lamp board with the SMD temperature control protection device 12 is pasted on the lamp board that needs to be protected. It is integrated with the lamp board to more closely reflect the real-time temperature of the protected lamp board so that the required protection temperature can be accurately achieved. When the preset protection temperature is reached, the lamp board with the SMD temperature control protection device 12 pops open the internal bimetallic strip 3 to actively disconnect the circuit; when the lamp board cools to the preset recovery temperature, the lamp board with the SMD temperature control protection device 12 closes the internal bimetallic strip 3 to connect the circuit; thereby protecting the lamp board.
[0022] The principle of the lamp board with the SMD temperature control protection device 12 can be roughly understood as the opening and closing of the bimetallic strip 3 to realize the passage and opening of the circuit. Its structure from top to bottom is the top metal shell, bimetallic spring, iron nail, moving contact, insulating paper, static contact, and bottom metal base plate. After the temperature of the lamp board is transmitted to the bimetallic strip 3, the bimetallic strip 3 is heated and reversely deformed, and the moving contact 5 and the static contact 6 on the bimetallic strip 3 are separated, cutting off the power supply circuit to play a protective role. The lamp board with the SMD temperature control protection device 12 has a wide operating temperature range: 60~180℃, and any temperature within the range can be provided upon request; the temperature tolerance range can be selected from ±5℃, ±8℃, ±10℃; the overload current trip range can be selected: 1~45A, which can be used for high power and high current.
[0023] After the lamp board is powered on, the temperature begins to rise. The temperature will transfer heat to the temperature control protection device that is integrated with the aluminum substrate and the lamp as the aluminum substrate (including but not limited to aluminum substrates, such as ceramics, electric plastics, etc.) of the lamp board conducts heat. Since the lamp board with the SMD temperature control protection device 12 has a preset disconnection temperature, when the preset disconnection temperature is reached, the lamp board with the SMD temperature control protector 12 pops open the internal bimetallic strip 3 connection to achieve the effect of an open circuit. Since the lamp board with the SMD temperature control protection device 12 has a preset recovery temperature, when the lamp board with the SMD temperature control protection device is in the disconnection protection state, the lamp board is powered off and enters a natural cooling state. When the temperature drops to the preset recovery temperature, the internal springs close so that the passage lamp board continues to work normally.
[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A light board with a surface-mount temperature control protection device, characterized in that: The invention comprises a lamp board body (10), on which a surface-mount temperature control protection device (12) is arranged, and the surface-mount temperature control protection device (12) comprises a shell (1), a bottom plate (2) is fixedly arranged at the bottom of the shell (1), a bimetallic strip (3) is fixedly arranged on the inner side of the shell (1), one end of the bimetallic strip (3) is connected to the inner side of the shell (1) and the other end is fixedly connected to a moving contact (5) by an iron nail (4), a static contact (6) is fixedly arranged on the inner side of the bottom plate (2), and the upper side of the static contact (6) corresponds to the lower side of the moving contact (5).
2. A light panel with a surface-mount temperature control protection device according to claim 1, characterized in that: An insulating paper (7) is provided on the inner side of the housing (1) below the bimetallic strip (3) and above the static contact (6); an opening (8) is provided in the middle of the insulating paper (7); and the movable contact (5) and the static contact (6) correspond to the positions of the opening (8).
3. The light panel with a surface-mount temperature control protection device according to claim 1, characterized in that: The moving contact (5) and the stationary contact (6) are connected to an external power source via wires.
4. A lamp panel with a surface-mount temperature control protection device according to claim 1 or 2, characterized in that: The chip-type temperature control protection device (12) is attached to the lamp board body (10), the lamp bead (11) is arranged on the lamp board body (10), and the side of the lamp board body (10) is provided with an insert plate (13) and a welding plate (14).
5. A light panel with a surface-mount temperature control protection device according to claim 4, characterized in that: The lamp bead (11), the surface mount temperature control protection device (12), the plug board (13) and the welding plate (14) are connected in series via a wire.