PTC (Positive Temperature Coefficient) mounting structure and bath heater

Abstract

According to the technical scheme, the PTC installation structure comprises a bottom shell and a PTC element, an installation groove used for containing the PTC element is formed in the bottom shell, an installation cover is movably arranged on the bottom shell and located at the position of the installation groove, the PTC element and the installation cover are fixed through a fastener, an outer shell is fixed to the bottom shell, and the PTC element is arranged in the outer shell. The mounting cover is clamped and fixed on the mounting groove by the outer shell and the bottom shell; according to the utility model, the PTC element can be fixed by only one screw, the structure is simple, the disassembly and assembly are convenient, and the efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitary wares, and more specifically, to a PTC installation structure and a ceiling lamp with integrated functions of heating, lighting, ventilation, etc. Background Art

[0002] In modern household life, as a key device integrating functions such as heating, lighting, and ventilation in the bathroom, the performance and installation convenience of the ceiling lamp directly affect the user experience. Among the ceiling lamp products widely used in the current market, most of them adopt PTC heating elements inside, which are favored because of their advantages such as automatic constant temperature, safety and reliability, and long service life.

[0003] However, in the existing ceiling lamp structure, the installation method of the PTC structure generally relies on multiple screws for fixation. Although this installation method ensures the stability of the PTC element to a certain extent, it has problems such as high installation complexity and low installation and disassembly efficiency, which brings great inconvenience to the repair and replacement of the PTC element and also reduces the aesthetics of the product. Summary of the Utility Model

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] A PTC installation structure includes a bottom case, an outer case, and a PTC element. An installation groove for placing the PTC element is provided on the bottom case. An installation cover is movably arranged at the installation groove on the bottom case. The PTC element is fixed to the installation cover through a fastener. The outer case is fixed to the bottom case, and the outer case and the bottom case clamp and fix the installation cover on the installation groove.

[0006] The utility model is further arranged as: a through hole is provided on the outer case, and a limiting block protrudes from the periphery of the installation cover. When the outer case is fixed to the bottom case, the installation cover passes through the through hole to the outside of the outer case, and the limiting block fits against the inner side of the outer case, thereby clamping and fixing the installation cover.

[0007] The utility model is further arranged as: at least two sides of the periphery of the installation cover protrude with limiting blocks.

[0008] The utility model is further arranged as: the edge of the installation cover fits against the edge of the installation groove.

[0009] The utility model is further arranged as: a positioning port is provided at the edge of the installation groove, and a positioning block that is clamped and matched with the positioning port protrudes from the periphery of the installation cover.

[0010] The utility model is further arranged as: the fastener is a screw, and the fastener passes through the PTC element and then penetrates into the installation cover.

[0011] The present utility model is further configured such that: a support block is provided at one end of the mounting cover away from the fastener, the support block protrudes inward from the edge of the mounting cover, and one end of the PTC element away from the fastener is in contact with the support block.

[0012] The present utility model is further configured such that: air outlet holes are provided on the side of the mounting cover facing the housing.

[0013] The present utility model is further configured such that: a plurality of notches are provided at the edge of the bottom case, a plurality of barbs corresponding to the notches protrude from the housing, and the barbs are snap-fitted into the notches to fix the housing to the bottom case.

[0014] In addition, the present utility model also proposes a bathroom heater, including the above-mentioned PTC mounting structure.

[0015] Compared with the prior art, the present utility model has at least the following advantages:

[0016] 1. By fixing the PTC element on the mounting cover and then clamping and fixing the mounting cover through the housing and the bottom case, the PTC element is fixed in the mounting groove. The installation of the PTC element only requires one screw, with a simple structure, convenient disassembly and high efficiency.

[0017] 2. By providing the positioning hole and the positioning block, quick alignment of the mounting cover and the mounting groove is achieved, and the mounting cover is not prone to deviation during subsequent installation, enhancing stability.

[0018] 3. A support block is provided at one end of the mounting cover away from the fastener, providing a supporting force for one end of the PTC element away from the fastener, preventing the PTC element from bending downward, reducing the pressure on the fastener, and avoiding the fastener from falling off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall schematic diagram of the first embodiment;

[0020] Figure 2 is the exploded schematic diagram of the first embodiment;

[0021] Figure 3 is the structural schematic diagram of the bottom case;

[0022] Figure 4 is the schematic diagram when the PTC element is installed in the mounting cover;

[0023] Figure 5 is the bottom perspective view of the first embodiment;

[0024] Figure 6 is Figure 5 the enlarged schematic diagram of part A in

[0025] Figure 7It is an overall schematic diagram of the second embodiment.

[0026] Explanation of reference numerals:

[0027] 1. Bottom shell; 2. PTC element; 3. Installation groove; 4. Installation cover; 5. Fastener; 6. Outer shell; 7. Through hole; 8. Limit block; 9. Positioning port; 10. Positioning block; 11. Support block; 12. Air outlet hole; 13. Notch; 14. Barbed hook; 15. Rounded corner; 16. Threaded hole; 17. Heat lamp; 18. Air outlet. Specific implementation mode

[0028] To make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0029] In the description of the present utility model, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0030] The first embodiment:

[0031] A PTC installation structure, as Figures 1 to 3 shown, includes a bottom shell 1, an outer shell 6 and a PTC element 2. An installation groove 3 for placing the PTC element 2 is provided on the bottom shell 1. An installation cover 4 is movably arranged on the bottom shell 1 at the position of the installation groove 3. The PTC element 2 and the installation cover 4 are fixed by a fastener 5. The outer shell 6 is fixed on the bottom shell 1. The outer shell 6 and the bottom shell 1 clamp and fix the installation cover 4 on the installation groove 3.

[0032] The edge of the installation cover 4 fits with the edge of the installation groove 3, so that the installation cover 4 is located at the top of the installation groove 3. A through hole 7 is provided on the outer shell 6. A limit block 8 protrudes from the periphery of the installation cover 4. When the outer shell 6 is fixed on the bottom shell 1, the upper half of the installation cover 4 passes through the through hole 7 to the outside of the outer shell 6, and the limit block 8 fits on the inner side of the outer shell 6, thereby clamping and fixing the installation cover 4. The limit block 8 is clamped at the edge of the through hole 7 to play a limiting role so that the installation cover 4 will not fall out of the through hole 7.

[0033] The edge of the upper half of the mounting cover 4 is provided with a rounded corner 15, and the rounded corner 15 is partially located above the limiting block 8. By setting the rounded corner 15, it is not easy for the mounting cover 4 to get stuck when passing through the through hole 7.

[0034] At least two sides of the circumferential side of the mounting cover 4 protrude with limiting blocks 8. If only one side is provided with the limiting block 8, the mounting cover 4 may tilt and fall off. In this embodiment, two limiting blocks 8 are provided on the left side of the mounting cover 4, and one limiting block 8 is provided on the bottom side.

[0035] A positioning port 9 is provided at the edge of the mounting groove 3, and a positioning block 10 that is snap-fitted with the positioning port 9 protrudes from the circumferential side of the mounting cover 4. When placing the mounting cover 4 on the mounting groove 3, only need to snap the positioning block 10 at the positioning port 9, which can quickly achieve alignment, improve the installation efficiency, and at the same time avoid the mounting cover 4 from shifting, enhancing the stability of the mounting cover 4; in this embodiment, the positioning block 10 is provided on the left side of the mounting cover 4, and the structure of the positioning block 10 is the same as that of the limiting block 8 and is at the same height as the limiting block 8. Therefore, the positioning block 10 can also play the role of the limiting block 8 at the same time.

[0036] As Figure 4 shown, in this embodiment, the fastener 5 is specifically a screw. The fastener 5 passes through the PTC element 2 and then penetrates into the mounting cover 4 and is threadedly connected with the mounting cover 4, thereby fixing the PTC element 2 on the mounting cover 4; a support block 11 is provided at one end of the mounting cover 4 away from the fastener 5. The support block 11 protrudes inward from the edge of the mounting cover 4. One end of the PTC element 2 away from the fastener 5 is in contact with the support block 11. When installing the PTC element 2, the PTC element 2 is penetrated into the mounting cover 4, and the bottom of the PTC element 2 is in contact with the support block 11, so that both ends of the PTC element 2 are kept balanced and will not bend downward, thereby reducing the pressure on the fastener 5 and preventing the fastener 5 from loosening.

[0037] As Figure 1 shown, on the side of the mounting cover 4 facing the housing 6, an air outlet hole 12 is provided. The air outlet hole 12 is in a honeycomb shape, and the air is blown out from the air outlet hole 12 after being heated by the PTC element 2.

[0038] As Figure 5 And Figure 6 shown, a plurality of notches 13 are provided at the edge of the bottom case 1. The bottom case 1 is in a cuboid shape, with one notch 13 provided on the width side and two notches 13 provided on the length side. A plurality of hooks 14 corresponding to the notches 13 protrude from the housing 6. The hooks 14 are snap-fitted in the notches 13, thereby fixing the housing 6 on the bottom case 1. The hooks 14 have a certain elasticity, and a guiding surface is provided on the side wall of the hooks 14, so that the user can directly press the housing 6 on the bottom case 1 with an external force.

[0039] Four corners of the bottom case 1 are respectively provided with threaded holes 16. Screws are arranged at the threaded holes 16. After pre-fixing is realized through the reverse hooks 14 and the notches 13, the screws are passed through the threaded holes 16 and into the outer case 6 to realize fixation.

[0040] The installation process of the present utility model is as follows:

[0041] First, the PTC element 2 is passed through the installation cover 4, and the two are fixed through the fastener 5. Then, the installation cover 4 is covered on the installation groove 3 so that the positioning block 10 is engaged with the positioning port 9. Subsequently, the outer case 6 is pressed on the bottom case 1 to complete the installation of the PTC element 2; when disassembly is required, after removing the outer case 6, the installation cover 4 is directly taken off from the installation groove 3, and then the fastener 5 is unscrewed to take out the PTC element 2.

[0042] Second Embodiment:

[0043] A bathroom heater, as Figure 7 shown, includes the PTC installation structure described in the first embodiment. The PTC installation structure is installed on the bathroom ceiling. A panel is provided below the outer case 6, and an air outlet 18 and a heat lamp 17 are provided on the panel.

[0044] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A PTC installation structure, comprising a bottom case (1), an outer case (6) and a PTC element (2), characterized in that: An installation groove (3) for placing a PTC element (2PTC) is provided on the bottom case (1). An installation cover (4) is movably arranged on the bottom case (1) at the position of the installation groove (3). The PTC element (2) is fixed to the installation cover (4) by a fastener (5). The outer case (6) is fixed to the bottom case (1). The outer case (6) and the bottom case (1) clamp and fix the installation cover (4) on the installation groove (3).

2. The PTC mounting structure according to claim 1, wherein: A through hole (7) is formed in the outer case (6). A limiting block (8) protrudes from the peripheral side of the installation cover (4). When the outer case (6) is fixed to the bottom case (1), the installation cover (4) passes through the through hole (7) to the outside of the outer case (6), and the limiting block (8) fits against the inner side of the outer case (6), thereby clamping and fixing the installation cover (4).

3. The PTC mounting structure according to claim 2, wherein: At least two sides of the peripheral side of the installation cover (4) protrude with limiting blocks (8).

4. The PTC installation structure according to claim 1, characterized in that: The edge of the installation cover (4) fits against the edge of the installation groove (3).

5. The PTC mounting structure according to claim 4, characterized in that: A positioning port (9) is provided at the edge of the installation groove (3). A positioning block (10) that is engaged with the positioning port (9) in a clamping manner protrudes from the peripheral side of the installation cover (4).

6. The PTC mounting structure according to claim 1, characterized in that: The fastener (5) is a screw. The fastener (5) passes through the PTC element (2) and then penetrates into the installation cover (4).

7. The PTC mounting structure according to claim 1, wherein: A support block (11) is provided at one end of the installation cover (4) away from the fastener (5). The support block (11) protrudes inward from the edge of the installation cover (4). One end of the PTC element (2) away from the fastener (5) fits against the support block (11).

8. The PTC mounting structure according to claim 1, characterized in that: An air outlet hole (12) is formed on one side of the installation cover (4) facing the outer case (6).

9. The PTC mounting structure according to claim 1, characterized in that: A plurality of notches (13) are formed at the edge of the bottom case (1). A plurality of barbs (14) corresponding to the notches (13) protrude from the outer case (6). The barbs (14) are clamped in the notches (13), thereby fixing the outer case (6) to the bottom case (1).

10. A bathroom heater, characterized in that: It includes the PTC installation structure according to any one of the above claims 1-9.

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