Connecting structure of heating core body and control panel of PTC (Positive Temperature Coefficient) heater

Abstract

The utility model relates to the field of PTC (Positive Temperature Coefficient) heaters, and discloses a heating core body and control board connecting structure of a PTC heater, which comprises a control board, a connecting board and a heating core body, the control board is vertically arranged, and a positive electrode port and a negative electrode port which are flush with each other are arranged on the board surface of the control board; the connecting plate is horizontally arranged, is made of a conductive material, and comprises a first connecting plate in butt joint with the positive electrode port and a second connecting plate in butt joint with the negative electrode port; the heating core body is vertically arranged below the connecting plate, the top of the heating core body is provided with a positive electrode interface and a negative electrode interface, the positive electrode interface is welded and fixed with the second connecting plate, and the negative electrode interface is welded and fixed with the first connecting plate. And the heat dissipation performance and the safety of the product are greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of PTC heaters, in particular to a connection structure between a heating core and a control board of a PTC heater. Background Art

[0002] At present, the PTC heaters used in the market are connected to the heating core and control board by PCB welding and spring clips. The Curie temperature of the heating core is about 230 degrees, and this structure needs to realize a high-voltage circuit. Therefore, improper connection between the heating core and the control board poses a great safety hazard. Conventional PCB connection is in a dry-burning state of the product, which cannot withstand the high temperature requirements and has the risk of burning. The reed-type connection has unreliable contact or increased contact resistance under vibration conditions, leading to ablation. Summary of the invention

[0003] In view of the above problems, the utility model provides a connection structure that is easy to dissipate heat, space the heat dissipation chip and the control board, and has a safe and stable connection. The specific solution is as follows:

[0004] A PTC heater heating core and control board connection structure, comprising a control board, a connection board and a heating core.

[0005] The control board is arranged vertically, and a flush positive electrode port and a flush negative electrode port are arranged on the board surface of the control board;

[0006] The connecting plate is arranged horizontally, and is made of a conductive material, including a first connecting plate connected to the positive electrode port and a second connecting plate connected to the negative electrode port;

[0007] The heating core is vertically arranged below the connecting plate, and a positive electrode interface and a negative electrode interface are arranged on the top of the heating core. The positive electrode interface is welded and fixed to the second connecting plate, and the negative electrode interface is welded and fixed to the first connecting plate.

[0008] Furthermore, the first connecting plate and the second connecting plate are respectively provided with mutually aligned plug holes, and the plug holes include two parallel strip-shaped through holes;

[0009] The positive electrode interface is provided with a first connector, which is a horizontally arranged U-shaped plate structure, one end of the U-shaped plate is connected to the positive electrode interface of the heating core, and the side plates on both sides of the U-shaped plate are inserted into the corresponding sockets and fixed by welding;

[0010] The negative electrode interface is provided with a second connector, the second connector has the same structure as the first connector, and the negative electrode interface is plugged into the corresponding socket through the second connector and fixed by welding.

[0011] Furthermore, the first connecting plate and the second connecting plate are respectively provided with a plurality of plug holes which are arranged in a straight line along the length direction, and the plurality of plug holes between the first connecting plate and the second connecting plate are respectively aligned in pairs to form a plurality of plug hole groups.

[0012] Furthermore, a plurality of heating cores are arranged at the bottom of the connection plate, and each heating core is connected to a socket group respectively.

[0013] Furthermore, the connecting plate is made of metal copper.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The heating core in the utility model is connected to the control board by welding with the connecting plate, which has the advantage of heat dissipation of the heating core to damage the connecting plate.

[0016] 2. The utility model has the technical effect of stable and safe connection by arranging the plug-in connection and welding fixation of the joint and the socket.

[0017] 3. The connector of the utility model is a U-shaped plate structure, which has the advantage of being firmly plugged into the socket.

[0018] 4. The joint of the utility model is a U-shaped plate structure, which can ensure that a sufficient amount of solder material is filled during welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the overall structure diagram of the utility model;

[0020] Figure 2 is the structural diagram of the joint;

[0021] Reference numerals:

[0022] 1. Control board; 2-1. First connection board; 2-2. Second connection board; 3. Socket; 4. Heating core; 4-1. First connector; 5. Positive terminal; 6. Negative terminal; 7. Negative terminal; 8. Positive terminal. Implementation

[0023] The technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments.

[0024] Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the utility model.

[0025] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances. Example

[0027] like Figure 1 As shown, a PTC heater heat core and controller connection structure includes a control board, a connection board and a heat core.

[0028] The control board is arranged vertically, and a flush positive electrode port and a flush negative electrode port are arranged on the board surface of the control board;

[0029] The connecting plate is arranged horizontally, the connecting plate is made of conductive material, and the connecting plate is made of metal copper, including a first connecting plate connected to the positive electrode port and a second connecting plate connected to the negative electrode port;

[0030] The heating core is vertically arranged below the connecting plate, and a positive electrode interface and a negative electrode interface are arranged on the top of the heating core. The positive electrode interface is welded and fixed to the second connecting plate, and the negative electrode interface is welded and fixed to the first connecting plate.

[0031] like Figure 1 and Figure 2 As shown, the first connecting plate and the second connecting plate are respectively provided with mutually aligned plug holes, and the plug holes include two parallel strip-shaped through holes.

[0032] The positive electrode interface is provided with a first connector, which is a horizontally arranged U-shaped plate structure, one end of the U-shaped plate is connected to the positive electrode interface of the heating core, and the side plates on both sides of the U-shaped plate are inserted into the corresponding jacks and fixed by welding. The U-shaped plate structure can ensure that a sufficient amount of solder material is filled during welding.

[0033] The negative electrode interface is provided with a second connector, the second connector has the same structure as the first connector, and the negative electrode interface is plugged into the corresponding socket through the second connector and fixed by welding. Example

[0034] In order to load multiple heat dissipation cores, the utility model further improves the connecting plate mechanism, and the solution is as follows:

[0035] like Figure 1 As shown, a PTC heater heat core and controller connection structure includes a control board, a connection board and a heat core.

[0036] The control board is arranged vertically, and a flush positive electrode port and a flush negative electrode port are arranged on the board surface of the control board;

[0037] The connecting plate is arranged horizontally, the connecting plate is made of conductive material, and the connecting plate is made of metal copper, including a first connecting plate connected to the positive electrode port and a second connecting plate connected to the negative electrode port;

[0038] The heating core is vertically arranged below the connecting plate, and a positive electrode interface and a negative electrode interface are arranged on the top of the heating core. The positive electrode interface is welded and fixed to the second connecting plate, and the negative electrode interface is welded and fixed to the first connecting plate.

[0039] like Figure 1 and Figure 2 As shown, the first connecting plate and the second connecting plate are respectively provided with mutually aligned plug holes, and the plug holes include two parallel strip-shaped through holes.

[0040] The positive electrode interface is provided with a first connector, which is a horizontally arranged U-shaped plate structure, one end of the U-shaped plate is connected to the positive electrode interface of the heating core, and the side plates on both sides of the U-shaped plate are inserted into the corresponding jacks and fixed by welding. The U-shaped plate structure can ensure that a sufficient amount of solder material is filled during welding.

[0041] The negative electrode interface is provided with a second connector, the second connector has the same structure as the first connector, and the negative electrode interface is plugged into the corresponding socket through the second connector and fixed by welding.

[0042] The first connecting plate and the second connecting plate are respectively provided with a plurality of sockets arranged in a straight line along the length direction, and the plurality of sockets between the first connecting plate and the second connecting plate are respectively aligned in pairs to form a plurality of socket groups. A plurality of heating cores are arranged at the bottom of the connecting plate, and each heating core is respectively connected to a socket group.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of each embodiment of the utility model.

Claims

1. A PTC heater heating core and control board connection structure, comprising a control board, a connecting board and a heating core, characterized in that: The control board is arranged vertically, and a flush positive electrode port and a flush negative electrode port are arranged on the board surface of the control board; The connecting plate is arranged horizontally, and is made of a conductive material, including a first connecting plate connected to the positive electrode port and a second connecting plate connected to the negative electrode port; The heating core is vertically arranged below the connecting plate, and a positive electrode interface and a negative electrode interface are arranged on the top of the heating core. The positive electrode interface is welded and fixed to the second connecting plate, and the negative electrode interface is welded and fixed to the first connecting plate.

2. The connection structure between the heating core and the control board of the PTC heater according to claim 1, characterized in that: The first connecting plate and the second connecting plate are respectively provided with mutually aligned plug holes, wherein the plug holes include two parallel strip-shaped through holes; The positive electrode interface is provided with a first connector, which is a horizontally arranged U-shaped plate structure, one end of the U-shaped plate is connected to the positive electrode interface of the heating core, and the side plates on both sides of the U-shaped plate are inserted into the corresponding sockets and fixed by welding; The negative electrode interface is provided with a second connector, the second connector has the same structure as the first connector, and the negative electrode interface is plugged into the corresponding socket through the second connector and fixed by welding.

3. The connection structure between the heating core and the control board of the PTC heater according to claim 2, characterized in that: The first connecting plate and the second connecting plate are respectively provided with a plurality of plug holes which are arranged in a straight line along the length direction, and the plurality of plug holes between the first connecting plate and the second connecting plate are respectively aligned in pairs to form a plurality of plug hole groups.

4. The connection structure between the heating core and the control board of the PTC heater according to claim 3, characterized in that: A plurality of heating cores are arranged at the bottom of the connection plate, and each heating core is connected to a socket group respectively.

5. The connection structure between the heating core and the control board of the PTC heater according to claim 1, characterized in that: The connecting plate is made of metal copper.

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