Waterproof PTC heater

Abstract

The utility model belongs to the technical field of PTC (Positive Temperature Coefficient) heaters, and particularly relates to a waterproof PTC heater which comprises a shell, a sealing cover is arranged on the front side of the shell, and a mounting frame is fixedly mounted between the inner sides of the shell; through arrangement of a connecting assembly, a positioning plate above a heating element is aligned with a connecting groove above a mounting frame, so that the positioning plate slides into the connecting groove, an electric telescopic rod is controlled to drive a sliding block to slide, the sliding block drives a plurality of connecting blocks to move, and the connecting blocks drive locking blocks to move; and the locking block locks the positioning plate, so that the heating element can be connected and disassembled more conveniently and quickly.

Description

Technical Field

[0001] The utility model relates to the technical field of PTC heaters, in particular to a waterproof PTC heater. Background Art

[0002] The defrosting of the glass of electric buses is completed by the defroster, and the heat source inside the defroster is the PTC heater. The cold air from the outside is sucked in by the fan inside the defroster, and then heated into hot air by the PTC heater. It is blown evenly to the inside of the windshield through the defroster air duct to perform panoramic defrosting or defogging. It is an important component of electric buses;

[0003] The announcement number CN 216217601 U discloses a waterproof PTC heater, comprising a heater body, a wire outlet portion located at one end of the heater body, and a waterproof portion located at the other end of the heater body; the wire outlet portion comprises a wire outlet mounting frame, and a first waterproof gasket and a busbar located in the wire outlet mounting frame, both ends of the wire outlet mounting frame are provided with wire holes, a wire outlet block is provided on the side of the wire outlet mounting frame, and a wire outlet hole is provided on the wire outlet block, and the first waterproof gasket is buckled on the end of the heater body;

[0004] When in use, the device is inconvenient to connect and fix the heating element, and requires multiple parts for auxiliary installation, which makes it time-consuming and laborious for workers to disassemble and install, reducing work efficiency. In addition, the reserved area for the wire makes the sealing effect of the device poor, making it easy for water to enter the inside of the machine. Therefore, we propose a waterproof PTC heater. Utility Model Content

[0005] The utility model aims to provide a waterproof PTC heater to solve the existing problems.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A waterproof PTC heater comprises a shell, a sealing cover is arranged on the front side of the shell, a mounting frame is fixedly installed between the inner sides of the shell; a connecting component is installed on the mounting frame; and a sealing component is installed on the shell and the sealing cover.

[0008] As a further improvement of the above scheme, the connecting assembly includes a heating element, an electric telescopic rod, a sliding block, a connecting block, a locking block, a positioning plate and a wire, the heating element is arranged on the front side of the mounting frame, the electric telescopic rod is fixedly mounted on the top inner wall of the mounting frame, the sliding block is fixedly mounted on the output end of the electric telescopic rod, the connecting block is fixedly mounted on the left and right sides of the sliding block, and are arranged symmetrically up and down, the locking block is fixedly mounted on one side of the connecting block, the positioning plate is fixedly mounted on the four corners of one side of the heating element, the wire is fixedly mounted on the top of the heating element, and is arranged in sequence from left to right,

[0009] As a further improvement of the above scheme, the sealing assembly includes a fixed block, a sealing protective sleeve, an elastic cantilever, a screw, a knob and a baffle. The fixed block is fixedly installed on the top of the outer shell and the sealing cover, and are arranged in sequence from left to right. The sealing protective sleeve is rotatably installed on the outside of the wire. The elastic cantilever is fixedly installed on the top inner wall and the bottom inner wall of the sealing cover, and are arranged in sequence from left to right. The screw is rotatably installed between the top and bottom inner sides of the outer shell, the knob is fixedly installed on the outside of one end of the screw, and the baffle is threadedly installed on the outside of the screw.

[0010] As a further improvement of the above solution, the fixing block is in a semicircular arc shape, an outer side of the fixing block is provided with an external thread, and an inner side of the sealing protection sleeve is provided with an internal thread.

[0011] By adopting the above technical solution, the fixed block can become round after connection, and the sealing protection sleeve can engage with the external thread above the fixed block through the internal thread after rotation, so that water source is not easy to enter the inner side of the shell and the sealing cover.

[0012] As a further improvement of the above solution, the top inner wall and the bottom inner wall of the shell are provided with sliding grooves, and the baffle is slidably installed between the inner sides of the sliding grooves.

[0013] By adopting the above technical solution, the slide groove can limit the baffle plate, making it difficult for the baffle plate to deviate after being subjected to force.

[0014] As a further improvement of the above solution, connecting grooves are provided at the four front corners of the mounting frame, and the spacing between the positioning plates is the same as the spacing between the connecting grooves.

[0015] As a further improvement of the above solution, a locking groove is provided on the top of the positioning plate, and the outer diameter of the locking block is the same as the inner diameter of the locking groove.

[0016] By adopting the above technical solution, the locking groove makes it easy for the locking block to enter the inner side of the positioning plate after movement, so that the locking block and the positioning plate abut against each other, so that the heating element can be quickly connected through the positioning plate, and the connection is relatively tight.

[0017] As a further improvement of the above solution, a threaded hole is opened on the inner side of the baffle, and the screw rod is engaged with the threaded hole.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] (1) The utility model is a waterproof PTC heater. By setting a connection component, the positioning plate above the heating element is aligned with the connection groove above the mounting frame, so that the positioning plate slides into the connection groove, and the electric telescopic rod is controlled to drive the sliding block to slide, so that the sliding block drives multiple connection blocks to move, so that the connection block drives the locking block to move, so that the locking block locks the positioning plate, so that the connection and removal of the heating element are more convenient and quick;

[0020] (2) The utility model provides a waterproof PTC heater. Through the provided sealing assembly, after the heating element is connected, the sealing cover is inserted into the inner side of the outer shell through the elastic cantilever above, so that the elastic cantilever abuts against the baffle, thereby making the outer shell and the sealing cover connected more tightly, and the reserved hole between the outer shell and the sealing cover is convenient for placing the wire, and the sealing protective sleeve is rotated to engage with the fixed block, so that the inner side of the outer shell and the sealing cover can be better sealed during the use of the wire. When removing the sealing cover, the knob can be rotated to drive the screw rod to rotate, so that the screw rod drives the baffle to slide, so that the baffle cancels the limit on the elastic cantilever, making it easier to separate the outer shell and the sealing cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a three-dimensional structural schematic diagram of a waterproof PTC heater proposed by the utility model;

[0023] Figure 2 A schematic diagram of a partial three-dimensional structure of a waterproof PTC heater proposed by the utility model;

[0024] Figure 3 A schematic diagram of a partial three-dimensional structure of a waterproof PTC heater proposed by the utility model;

[0025] Figure 4 The present invention is a schematic diagram of a partial three-dimensional structure of a waterproof PTC heater.

[0026] In the figure: 1. outer shell; 2. sealing cover; 3. mounting frame; 4. heating element; 5. electric telescopic rod; 6. sliding block; 7. connecting block; 8. locking block; 9. positioning plate; 10. wire; 11. fixing block; 12. sealing protective cover; 13. elastic cantilever; 14. screw rod; 15. knob; 16. baffle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] refer to Figure 1-4 A waterproof PTC heater includes a shell 1, a sealing cover 2 is arranged on the front side of the shell 1, a mounting frame 3 is fixedly installed between the inner sides of the shell 1; a connecting component, the connecting component is installed on the mounting frame 3; and a sealing component is installed on the shell 1 and the sealing cover 2.

[0029] In this embodiment, the connection assembly includes a heating element 4, an electric telescopic rod 5, a sliding block 6, a connecting block 7, a locking block 8, a positioning plate 9 and a wire 10. The heating element 4 is arranged on the front side of the mounting frame 3, the electric telescopic rod 5 is fixedly mounted on the top inner wall of the mounting frame 3, the sliding block 6 is fixedly mounted on the output end of the electric telescopic rod 5, the connecting block 7 is fixedly mounted on the left and right sides of the sliding block 6, and is arranged symmetrically up and down, the locking block 8 is fixedly mounted on one side of the connecting block 7, the positioning plate 9 is fixedly mounted on the four corners of one side of the heating element 4, and the wire 10 is fixedly mounted on the top of the heating element 4, and is arranged from left to right.

[0030] In this embodiment, the sealing assembly includes a fixed block 11, a sealing protective sleeve 12, an elastic cantilever 13, a screw rod 14, a knob 15 and a baffle 16. The fixed block 11 is fixedly installed on the top of the outer shell 1 and the sealing cover 2, and is arranged in sequence from left to right. The sealing protective sleeve 12 is rotatably installed on the outside of the wire 10. The elastic cantilever 13 is fixedly installed on the top inner wall and the bottom inner wall of the sealing cover 2, and is arranged in sequence from left to right. The screw rod 14 is rotatably installed between the top and bottom inner sides of the outer shell 1. The knob 15 is fixedly installed on the outside of one end of the screw rod 14, and the baffle 16 is threadedly installed on the outside of the screw rod 14.

[0031] In this embodiment, the shape of the fixing block 11 is a semicircular arc, the outer side of the fixing block 11 is provided with an external thread, and the inner side of the sealing protection sleeve 12 is provided with an internal thread.

[0032] In this embodiment, the top inner wall and the bottom inner wall of the housing 1 are provided with sliding grooves, and the baffle 16 is slidably installed between the inner sides of the sliding grooves.

[0033] In this embodiment, connection grooves are formed at the four front corners of the mounting frame 3 , and the spacing between the positioning plates 9 is the same as the spacing between the connection grooves.

[0034] In this embodiment, a locking groove is formed on the top of the positioning plate 9, and the outer diameter of the locking block 8 is the same as the inner diameter of the locking groove.

[0035] In this embodiment, a threaded hole is formed on the inner side of the baffle 16 , and the screw rod 14 is engaged with the threaded hole.

[0036] The implementation principle of one embodiment of the present application is as follows: align the positioning plate 9 above the heating element 4 with the connecting groove above the mounting frame 3, slide the positioning plate 9 into the connecting groove, control the electric telescopic rod 5 to drive the sliding block 6 to slide, so that the sliding block 6 drives multiple connecting blocks 7 to move, and the connecting block 7 drives the locking block 8 to move, so that the locking block 8 locks the positioning plate 9, so that the connection and removal of the heating element 4 are more convenient and quick; after the heating element 4 is connected, the sealing cover 2 enters the inner side of the housing 1 through the elastic cantilever 13 above, so that the elastic cantilever 1 3 is in contact with the baffle 16, so that the housing 1 and the sealing cover 2 are closely connected, and the hole reserved between the housing 1 and the sealing cover 2 is convenient for placing the wire 10, and the sealing protective sleeve 12 is rotated to engage with the fixing block 11, so that the wire 10 makes the inner side of the housing 1 and the sealing cover 2 have a better sealing effect during use. When the sealing cover 2 is removed, the knob 15 can be rotated to drive the screw rod 14 to rotate, so that the screw rod 14 drives the baffle 16 to slide, so that the baffle 16 cancels the limit of the elastic cantilever 13, so that the housing 1 and the sealing cover 2 are more convenient to separate.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The above is a detailed introduction to a waterproof PTC heater provided by the utility model. This article uses specific embodiments to explain the principle and implementation of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A waterproof PTC heater, characterized in that: include: A housing (1), wherein a sealing cover (2) is arranged on the front side of the housing (1), and a mounting frame (3) is fixedly mounted between the inner sides of the housing (1); A connecting assembly, the connecting assembly being mounted on the mounting frame (3); A sealing assembly is installed on the housing (1) and the sealing cover (2).

2. A waterproof PTC heater according to claim 1, characterized in that: The connection assembly comprises a heating element (4), an electric telescopic rod (5), a sliding block (6), a connecting block (7), a locking block (8), a positioning plate (9) and a wire (10); the heating element (4) is arranged on the front side of the mounting frame (3); the electric telescopic rod (5) is fixedly mounted on the top inner wall of the mounting frame (3); the sliding block (6) is fixedly mounted on the output end of the electric telescopic rod (5); the connecting block (7) is fixedly mounted on the left and right sides of the sliding block (6) and arranged symmetrically up and down; the locking block (8) is fixedly mounted on one side of the connecting block (7); the positioning plate (9) is fixedly mounted on the four corners of one side of the heating element (4); and the wire (10) is fixedly mounted on the top of the heating element (4) and arranged in sequence from left to right.

3. A waterproof PTC heater according to claim 1, characterized in that: The sealing assembly comprises a fixed block (11), a sealing protective sleeve (12), an elastic cantilever (13), a screw rod (14), a knob (15) and a baffle (16); the fixed block (11) is fixedly mounted on the top of the housing (1) and the sealing cover (2), and the fixed block (11) is fixedly mounted on the top of the housing (1) and the sealing cover (2), and the fixing block (11) is arranged in sequence from left to right; the sealing protective sleeve (12) is rotatably mounted on the outside of the wire (10); the elastic cantilever (13) is fixedly mounted on the top inner wall and the bottom inner wall of the sealing cover (2); the screw rod (14) is rotatably mounted between the top and bottom inner sides of the housing (1); the knob (15) is fixedly mounted on the outside of one end of the screw rod (14); and the baffle (16) is threadedly mounted on the outside of the screw rod (14).

4. A waterproof PTC heater according to claim 3, characterized in that: The fixing block (11) is in the shape of a semicircular arc, an outer side of the fixing block (11) is provided with an external thread, and an inner side of the sealing protection sleeve (12) is provided with an internal thread.

5. A waterproof PTC heater according to claim 3, characterized in that: The top inner wall and the bottom inner wall of the housing (1) are provided with sliding grooves, and the baffle (16) is slidably mounted between the inner sides of the sliding grooves.

6. A waterproof PTC heater according to claim 2, characterized in that: The four front corners of the installation frame (3) are provided with connection grooves, and the spacing of the positioning plates (9) is the same as the spacing of the connection grooves.

7. The waterproof PTC heater according to claim 2, characterized in that: A locking groove is provided on the top of the positioning plate (9), and the outer diameter of the locking block (8) is the same as the inner diameter of the locking groove.

8. The waterproof PTC heater according to claim 3, characterized in that: A threaded hole is provided on the inner side of the baffle (16), and the screw rod (14) is meshed with the threaded hole.

Images