Connection terminal assembly of ceramic PTC electric heater

Abstract

The utility model relates to the technical field of ceramic PTC (Positive Temperature Coefficient) electric heaters, in particular to a connecting terminal assembly of a ceramic PTC electric heater, which comprises a PTC electric heater main body, the PTC electric heater main body comprises PTC electric heater fins, one end of the PTC electric heater main body is provided with the PTC electric heater fins, one end of the PTC electric heater main body far away from the PTC electric heater fins is provided with a mounting seat, and the other end of the PTC electric heater main body far away from the PTC electric heater fins is provided with a connecting terminal. A first connecting terminal is installed at the end, away from the PTC electric heater body, of the installation base, limiting grooves are formed in the top end and the bottom end of the first connecting terminal, and sealing assemblies are installed at the top end and the bottom end of the first connecting terminal. According to the utility model, the elastic ball and the spring main body have good elasticity, so that when the second connecting terminal is inserted into the first connecting terminal, the sealing effect of the sealing assembly and the sealing groove is better, the sealing waterproof effect is better, rainwater is prevented from entering the connecting terminal assembly, and the service life of the connecting terminal assembly is prolonged. Therefore, internal electrical elements are damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic PTC electric heaters, in particular to a connection terminal assembly of a ceramic PTC electric heater. Background Art

[0002] Ceramic PTC electric heaters are a special ceramic material with automatic temperature control functions. They are suitable for many occasions requiring heating temperatures of 30 to 260°C. The main feature of ceramic PTC electric heaters is their self-limiting temperature characteristic. This characteristic enables the heater to self-regulate power consumption after reaching a certain temperature to avoid overheating, thereby achieving more efficient energy utilization. Specifically, the resistance of the PTC material increases with increasing temperature, which means that the heater will automatically adjust the power consumption according to the temperature. When heated to a specific temperature, it will reduce the use of electricity, thereby saving electricity. When using ceramic PTC electric heaters, they are usually started by connecting terminal assemblies. Therefore, a ceramic PTC electric heater connection terminal assembly is required to meet people's usage needs.

[0003] Currently, most of the connection terminal assemblies of ceramic PTC electric heaters on the market have poor sealing and waterproof effects when connected and used, which causes water stains to enter the interior of the connection terminal assembly, causing damage to the internal electrical components. At the same time, the existing connection terminal assemblies do not have a positioning and fixing mechanism, which can easily cause the connection terminal assembly to break due to external force factors, thereby affecting the use effect of the ceramic PTC electric heater. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] In view of the fact that the connection terminal assemblies of most ceramic PTC electric heaters currently on the market mentioned above or in the prior art have poor sealing and waterproof effects when connected and used, which causes water stains to enter the interior of the connection terminal assembly, thereby damaging the internal electrical components. At the same time, the existing connection terminal assemblies do not have a positioning and fixing mechanism, which can easily cause the connection terminal assemblies to break due to external force factors, thereby affecting the use effect of the ceramic PTC electric heater. Therefore, the present utility model is proposed.

[0006] Therefore, an object of the present invention is to provide a connecting terminal assembly for a ceramic PTC electric heater.

[0007] To solve the above technical problems, the present invention provides the following technical solutions: a connecting terminal assembly for a ceramic PTC electric heater, comprising a PTC electric heater body, which includes a PTC electric heater fin, one end of the PTC electric heater body being mounted with the PTC electric heater fin, an end of the PTC electric heater body being mounted with a mounting base away from the PTC electric heater fin, and an end of the mounting base being mounted away from the PTC electric heater body with a first connecting terminal, the top and bottom ends of the first connecting terminal both having limit slots, the top and bottom ends of the first connecting terminal both having sealing assemblies mounted thereon, and one end of each of the first connecting terminals having a plug hole;

[0008] An external connection terminal assembly includes a second connection terminal, which is sleeved on the outer wall of the first connection terminal, and a first groove is provided at the top and bottom ends of the second connection terminal. A mounting frame is installed at the top and bottom ends of the second connection terminal, and a hinged plate is hinged inside the mounting frame. A limit block is installed at one end of the bottom end of the hinged plate, a plug rod is installed at one end inside the second connection terminal, and an external wire is installed at one end of the second connection terminal.

[0009] As a preferred solution of a connecting terminal assembly of a ceramic PTC electric heater of the utility model, the sealing assembly includes a sealing ring, which is fixedly installed at the top and bottom ends of the first connecting terminal, an elastic ball is installed inside the sealing ring, and a spring body is installed at the bottom end of the sealing ring, and the top end of the spring body is fixedly connected to the inner wall of the sealing ring.

[0010] As a preferred solution of the connection terminal assembly of the ceramic PTC electric heater of the present invention, a high-pressure spring is installed at the bottom end of each hinge plate, and the bottom end of the high-pressure spring is fixedly connected to the bottom end inside the first groove.

[0011] As a preferred solution of the connection terminal assembly of the ceramic PTC electric heater of the present invention, the outer wall of the limit block is provided with anti-slip grooves.

[0012] As a preferred solution of the connection terminal assembly of the ceramic PTC electric heater of the present invention, the limiting block and the limiting groove cooperate with each other.

[0013] As a preferred solution of the connecting terminal assembly of the ceramic PTC electric heater of the present invention, the top and bottom ends of the second connecting terminal are both provided with sealing grooves, and the sealing grooves cooperate with the sealing assembly.

[0014] As a preferred solution of the connecting terminal assembly of the ceramic PTC electric heater of the present invention, sealing gaskets are installed on the side walls at both ends of the second connecting terminal.

[0015] The connection terminal assembly of a ceramic PTC electric heater of the utility model has the following beneficial effects:

[0016] 1. The present invention firstly cooperates with the second connecting terminal and the first connecting terminal, and cooperates with the sealing assembly and the sealing groove, and the elastic ball and the spring body have good elasticity, so that when the second connecting terminal is inserted into the first connecting terminal, the sealing assembly and the sealing groove have a better sealing effect, thereby achieving a better sealing and waterproof effect, preventing rainwater from entering the interior of the connecting terminal assembly and causing damage to the internal electrical components;

[0017] 2. The utility model first engages the limit groove and the limit block with each other, and presses the hinge plate, and hinges the hinge plate and the mounting frame to each other, so that one end of the hinge plate is squeezed to squeeze the high-pressure spring to deform, so that the hinge plate rotates inside the mounting frame, which makes it easier for the hinge plate to rotate so that the limit block no longer engages with the limit groove, thereby facilitating the operator to position and fix the second connecting terminal and the first connecting terminal during installation, thereby avoiding the connection terminal assembly from being broken by external force factors, thereby affecting the use effect of the ceramic PTC electric heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. Among them:

[0019] Figure 1 This is a schematic diagram of the main structure of a connection terminal assembly of a ceramic PTC electric heater;

[0020] Figure 2 This is a schematic diagram of the main assembly structure of a connection terminal assembly of a ceramic PTC electric heater;

[0021] Figure 3 A schematic cross-sectional view of a second connecting terminal of a connecting terminal assembly of a ceramic PTC electric heater;

[0022] Figure 4 This is a schematic diagram of the internal structure of the sealing ring of a connecting terminal assembly of a ceramic PTC electric heater.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. PTC electric heater body; 101. PTC electric heater fin; 102. Mounting base; 103. First connecting terminal; 104. Limiting groove; 105. Sealing assembly; 1051. Sealing ring; 1052. Elastic ball; 1053. Spring body; 106. Plug hole;

[0025] 2. External connection terminal assembly; 201. Second connection terminal; 202. First groove; 203. Mounting frame; 204. Hinge plate; 205. Limit block; 206. High-pressure spring; 207. Plug rod; 208. External wire; 209. Sealing groove; 2010. Sealing gasket. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Example 1: Reference Figures 1 to 4, which is the first embodiment of the present invention, provides a connecting terminal assembly for a ceramic PTC electric heater, which can solve the problem that the connecting terminal assemblies of most ceramic PTC electric heaters on the market currently have poor sealing and waterproof effects when connected and used, causing water stains to enter the interior of the connecting terminal assembly, thereby damaging the internal electrical components. At the same time, the existing connecting terminal assembly has no positioning and fixing mechanism, which can easily cause the connecting terminal assembly to break due to external forces, thereby affecting the use effect of the ceramic PTC electric heater, including the PTC electric heater body 1, which includes a PTC electric heater fin 101, the PTC electric heater fin 101 is installed at one end of the PTC electric heater body 1, a mounting base 102 is installed at the end of the PTC electric heater body 1 away from the PTC electric heater fin 101, and a first connecting terminal 103 is installed at the end of the mounting base 102 away from the PTC electric heater body 1, the top and bottom ends of the first connecting terminal 103 are both provided with a limiting groove 104, the top and bottom ends of the first connecting terminal 103 are both provided with a sealing assembly 105, and one end of each of the first connecting terminals 103 is provided with a plug hole 106;

[0030] The sealing assembly 105 includes a sealing ring 1051, which is fixedly installed at the top and bottom ends of the first connecting terminal 103. An elastic ball 1052 is installed inside the sealing ring 1051, and a spring body 1053 is installed at the bottom end of the sealing ring 1051. The top end of the spring body 1053 is fixedly connected to the inner wall of the sealing ring 1051. A sealing groove 209 is opened at the top and bottom ends of the second connecting terminal 201, and the sealing groove 209 cooperates with the sealing assembly 105.

[0031] The specific working principle is that first, through the cooperation between the second connecting terminal 201 and the first connecting terminal 103, and through the cooperation between the sealing component 105 and the sealing groove 209, and through the good elasticity of the elastic ball 1052 and the spring body 1053, the second connecting terminal 201 is inserted into the first connecting terminal 103, and the sealing effect of the sealing component 105 and the sealing groove 209 is better, thereby making the sealing and waterproof effect better, avoiding rainwater from entering the interior of the connecting terminal assembly, thereby causing damage to the internal electrical components.

[0032] Example 2: Reference Figures 1 to 4, which is the first embodiment of the present utility model, and provides a connection terminal assembly for a ceramic PTC electric heater. This embodiment can solve the problem that the connection terminal assemblies of most ceramic PTC electric heaters on the market currently have poor sealing and waterproofing effects when connected and used, causing water stains to enter the interior of the connection terminal assembly, thereby damaging the internal electrical components. At the same time, the existing connection terminal assembly has no positioning and fixing mechanism, which easily causes the connection terminal assembly to break due to external forces, thereby affecting the use effect of the ceramic PTC electric heater. The external connection terminal assembly 2 includes a second connection terminal 201, which is sleeved on the outer wall of the first connection terminal 103, and the second connection terminal 201 has a first groove 202 at the top and bottom ends. The second connection terminal 201 has a mounting bracket 203 installed at the top and bottom ends, and the mounting bracket 203 is hinged with a hinge plate 204 inside, and a limit block 205 is installed at one end of the bottom end of the hinge plate 204. A plug rod 207 is installed at one end of the second connection terminal 201, and an external wire 208 is installed at one end of the second connection terminal 201;

[0033] A high-pressure spring 206 is installed at the bottom end of the hinged plate 204, and the bottom end of the high-pressure spring 206 is fixedly connected to the bottom end inside the first groove 202. The outer wall of the limit block 205 is installed with anti-slip grooves. The limit block 205 cooperates with the limit groove 104, and the side walls at both ends of the second connecting terminal 201 are installed with sealing gaskets 2010.

[0034] The specific working principle is that when the first connecting terminal 103 and the second connecting terminal 201 need to be connected, the limiting groove 104 and the limiting block 205 are first engaged with each other, and by pressing the hinge plate 204, and the hinge plate 204 and the mounting frame 203 are hinged to each other, so that one end of the hinge plate 204 is squeezed to squeeze the high-pressure spring 206 to deform, so that the hinge plate 204 rotates inside the mounting frame 203, so that the hinge plate 204 can be rotated so that the limiting block 205 no longer engages with the limiting groove 104, so that the operator can position and fix the second connecting terminal 201 and the first connecting terminal 103 during installation, thereby avoiding the connection terminal assembly from being broken by external force factors, thereby affecting the use effect of the ceramic PTC electric heater.

[0035] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connection terminal assembly for a ceramic PTC electric heater, characterized by: include, A PTC electric heater body (1) comprises a PTC electric heater fin (101), one end of the PTC electric heater body (1) is mounted with the PTC electric heater fin (101), one end of the PTC electric heater body (1) away from the PTC electric heater fin (101) is mounted with a mounting seat (102), and one end of the mounting seat (102) away from the PTC electric heater body (1) is mounted with a first connecting terminal (103), the top and bottom ends of the first connecting terminal (103) are both provided with a limiting groove (104), the top and bottom ends of the first connecting terminal (103) are both provided with a sealing assembly (105), and one end of the first connecting terminal (103) is provided with a plug hole (106); An external connection terminal assembly (2) comprises a second connection terminal (201), wherein the second connection terminal (201) is sleeved on the outer wall of the first connection terminal (103), a first groove (202) is provided at the top and bottom of the second connection terminal (201), a mounting frame (203) is installed at the top and bottom of the second connection terminal (201), and a hinge plate (204) is hinged inside the mounting frame (203), a limit block (205) is installed at one end of the bottom of the hinge plate (204), a plug rod (207) is installed at one end inside the second connection terminal (201), and an external wire (208) is installed at one end of the second connection terminal (201).

2. The connecting terminal assembly of a ceramic PTC electric heater according to claim 1, characterized in that: The sealing assembly (105) comprises a sealing ring (1051), the sealing ring (1051) being fixedly mounted on the top and bottom ends of the first connecting terminal (103), an elastic ball (1052) being mounted inside the sealing ring (1051), a spring body (1053) being mounted at the bottom end inside the sealing ring (1051), and the top end of the spring body (1053) being fixedly connected to the inner wall of the sealing ring (1051).

3. The connecting terminal assembly of a ceramic PTC electric heater according to claim 1, characterized in that: The bottom ends of the hinge plates (204) are all equipped with high-pressure springs (206), and the bottom ends of the high-pressure springs (206) are fixedly connected to the bottom ends inside the first grooves (202).

4. The connecting terminal assembly of a ceramic PTC electric heater according to claim 1, characterized in that: The outer wall of the limiting block (205) is provided with anti-slip grooves.

5. The connecting terminal assembly of a ceramic PTC electric heater according to claim 1, characterized in that: The limiting block (205) cooperates with the limiting groove (104).

6. The connecting terminal assembly of a ceramic PTC electric heater according to claim 1, characterized in that: The top and bottom ends of the second connecting terminal (201) are both provided with sealing grooves (209), and the sealing grooves (209) cooperate with the sealing assembly (105).

7. The connecting terminal assembly of a ceramic PTC electric heater according to claim 1, characterized in that: Sealing pads (2010) are installed on the side walls at both ends of the second connecting terminal (201).

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