Combined PTC heater

Abstract

The utility model discloses a combined PTC heater, and particularly relates to the field of PTC heaters, comprising at least two PTC heaters, one end of each PTC heater is fixedly connected with a fixed disc, the fixed disc is rotatably connected with a rotating disc in a damping manner, the end face of the rotating disc is fixedly connected with a driven rod, the driven rod is internally provided with a slot, and the slot is connected with the rotating disc in a damping manner. A clamping groove communicated with the inserting groove is formed in the outer surface of the driven rod, a driving rod is fixedly connected to one end of the driven rod, the size of the driving rod is matched with the size of the inserting groove, a storage groove is formed in the outer surface of the driving rod, an elastic telescopic piece is arranged in the storage groove, and a clamping block is arranged on the elastic telescopic piece; the clamping block is used for movably clamping the clamping groove in the driven rod, and the driven rod is provided with a triggering structure used for pressing the clamping block. According to the utility model, the problem that the assembly complexity is increased while the disassembly and assembly efficiency is influenced because the assembly parts related to the assembly direction of the assembly do not have applicability when the PTC heater is actually assembled at present is solved.

Description

Technical Field

[0001] The utility model relates to the field of PTC heaters, and more specifically, to a combined PTC heater. Background Art

[0002] PTC heating element is also called PTC heater, which is composed of PTC ceramic heating element and aluminum tube. PTC heater is composed of galvanized outer pressure plate, stainless steel corrugated spring storage plate, galvanized inner pressure plate, single-layer aluminum heat sink, PTC heating sheet, double-layer aluminum heat sink, nickel-plated copper electrode terminal and PPS high-temperature plastic electrode sheath. It is an automatic constant temperature and power-saving electric heater.

[0003] At present, in order to adapt to the area requirements of the heating environment, PTC heaters often need to be combined and stacked. However, when the PTC heaters are actually combined, the installation components involved in the installation direction of the combination are not applicable, which not only affects the disassembly and assembly efficiency but also increases the complexity of the combination. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a combined PTC heater. The technical problem to be solved by the utility model is that when the PTC heater is actually assembled, the installation components involved in the installation direction of the assembly are not applicable, which not only affects the disassembly and assembly efficiency but also increases the complexity of the assembly.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined PTC heater, comprising at least two PTC heaters, each of which is fixedly connected to a fixed disk at one end, a rotating disk being connected to the fixed disk for damping rotation, a driven rod being fixedly connected to the end face of the rotating disk, a slot being provided in the driven rod, and a card slot communicating with the slot being provided on the outer surface of the driven rod, an active rod being fixedly connected to one end of the driven rod, a size of the active rod being matched with a size of the slot, a receiving groove being provided on the outer surface of the active rod, an elastic telescopic part being provided in the receiving groove, a card block being provided on the elastic telescopic part, the card block being used for movably carding into the card slot on the driven rod, and a trigger structure for pressing the card block being provided on the driven rod.

[0006] In a preferred embodiment, the fixed disk is rotationally connected to the rotating disk via a damping shaft.

[0007] In a preferred embodiment, the active rod is movably inserted into the slot.

[0008] In a preferred embodiment, one side of the block is configured as an arc surface, and the other side of the block is configured as a rectangular surface.

[0009] In a preferred embodiment, the elastic telescopic member includes a telescopic rod fixedly connected to the inner wall of the storage groove and a spring sleeved on the telescopic rod, and the clamping block is fixedly connected to one end of the telescopic rod.

[0010] In a preferred embodiment, the trigger structure includes a bracket fixedly connected to the outer surface of the driven rod, a T-shaped pressure rod movably passing through the bracket, a limiting ring fixedly connected to the T-shaped pressure rod and a spring mounted on the T-shaped pressure rod. When the blocking block is set in the blocking groove, the T-shaped pressure rod corresponds to a position on one side of the blocking block.

[0011] Technical effects and advantages of the utility model:

[0012] The utility model discloses a combined PTC heater, by arranging a driven rod and an active rod which can rotate coaxially at the end of the PTC heater, and by the cooperation of the driven rod and the active rod being plugged in, the position of the clamping block can be clamped in the clamping groove to complete the locking of the connection between the driven rod and the active rod, and the protruding clamping of the clamping block can be flexibly released in cooperation with the trigger structure, so that the driven rod and the active rod can be quickly released from the locking, and because the driven rod and the active rod can be rotatable, while the adjacent PTC heaters can be quickly disassembled and connected, the adjacent PTC heaters can also be combined and connected in the horizontal and vertical directions, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0014] Figure 1 The utility model is a schematic structural diagram of a horizontally combined PTC heater.

[0015] Figure 2 It is a structural schematic diagram of the fixed disk, the rotating disk, the driven rod and the active rod of the utility model.

[0016] Figure 3 For the utility model Figure 2 sectional view of .

[0017] Figure 4 It is a structural schematic diagram of the clamping block and the elastic telescopic member of the utility model.

[0018] Figure 5 It is a structural schematic diagram of the trigger structure of the utility model.

[0019] The accompanying drawings are marked as follows: 1. PTC heater; 2. fixed disk; 3. rotating disk; 4. driven rod; 41. slot; 42. card slot; 5. active rod; 6. storage slot; 7. elastic telescopic member; 71. telescopic rod; 72. spring one; 8. card block; 9. trigger structure; 91. bracket; 92. T-shaped pressure rod; 93. limit ring; 94. spring two. DETAILED DESCRIPTION

[0020] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Combined with reference Figure 1-Figure 5 The utility model provides a combined PTC heater, including at least two PTC heaters 1, one end of each PTC heater 1 is fixedly connected to a fixed disk 2, in the present application, the fixed disk 2 can be connected to the end position of the PTC heater 1 by screws, the fixed disk 2 is connected to a rotating disk 3 for damping rotation, the end surface of the rotating disk 3 is fixedly connected to a driven rod 4, a slot 41 is provided in the driven rod 4, and a card slot 42 connected to the slot 41 is provided on the outer surface of the driven rod 4, one end of the driven rod 4 is fixedly connected to an active rod 5, the size of the active rod 5 is adapted to the size of the slot 41, and the arrangement of the slot 41 can be used when two adjacent PTC heaters 1 are combined. To facilitate the insertion of the active rod 5, a tight connection combination of adjacent PTC heaters 1 can be ensured. A receiving groove 6 is provided on the outer surface of the active rod 5. An elastic telescopic member 7 is provided in the receiving groove 6. A card block 8 is provided on the elastic telescopic member 7. In the present application, the card block 8 can slide horizontally in the receiving groove 6. The card block 8 is used to movably engage the card groove 42 on the driven rod 4. When the active rod 5 is inserted into the slot 41, the card block 8 is just inserted into the card groove 42. In this way, the card groove 42 is limited on the driven rod 4 to complete the locking of the connection between the driven rod 4 and the active rod 5. A trigger structure 9 for pressing the card block 8 is provided on the driven rod 4. The trigger structure 9 is used to release the locking of the connection between the card block 8 and the driven rod 4.

[0022] The fixed disk 2 is rotationally connected to the rotating disk 3 via a damping shaft. The damping connection effect of the rotating disk 3 can prevent the active rod 5 and the driven rod 4 on the rotating disk 3 from rotating easily, so that the use angle of the active rod 5 or the driven rod 4 can be adjusted quickly and stably.

[0023] The active rod 5 is movably inserted into the slot 41 . Due to the matching of the sizes of the two, the active rod 5 can be tightly inserted into the slot 41 to improve the stability of insertion.

[0024] One side of the card block 8 is set as an arc surface, and the other side of the card block 8 is set as a rectangular surface. The advantage of this design is that when the arc surface of the card block 8 enters through the end of the slot 41, the card block 8 can be easily hidden in the slot 42 under the elastic expansion and contraction of the elastic expansion member 7, so that the active rod 5 can enter the slot 41 conveniently. When the end of the active rod 5 completes abutment against the inner end of the slot 41, the card block 8 is inserted into the slot 42. By utilizing the setting of the position of the rectangular surface of the card block 8, the card block 8 can be prevented from detaching from the slot 42, thereby effectively ensuring the anti-detachment property of the connection between the active rod 5 and the driven rod 4. In this way, adjacent PTC heaters 1 can be combined and connected with each other. Because the active rod 5 and the driven rod 4 can be adjusted in angle, adjacent PTC heaters 1 can be connected and used when they are stacked and combined in the horizontal and vertical directions.

[0025] The elastic telescopic member 7 includes a telescopic rod 71 fixedly connected to the inner wall of the storage groove 6 and a spring 72 sleeved on the telescopic rod 71. The clamping block 8 is fixedly connected to one end of the telescopic rod 71. The cooperation between the telescopic rod 71 and the spring 72 can meet the effect of elastic expansion and contraction. When the clamping block 8 enters the slot 41, the telescopic rod 71 and the spring 72 can be compressed and deformed, and the clamping block 8 can enter the storage groove 6 until the clamping block 8 enters the slot 42. At this time, the telescopic rod 71 and the spring 72 can be reset.

[0026] The trigger structure 9 includes a bracket 91 fixedly connected to the outer surface of the driven rod 4, a T-shaped pressure rod 92 movably passing through the bracket 91, a limiting ring 93 fixedly connected to the T-shaped pressure rod 92 and a spring 2 94 sleeved on the T-shaped pressure rod 92. When the block 8 is set in the slot 42, the T-shaped pressure rod 92 corresponds to a position on one side of the block 8. In the present application, the spring 2 94 is located on the outside of the bracket 91. The T-shaped pressure rod 92 can be provided with a pointed end, so that the block 8 can be pressed out of the slot 42 conveniently and completely.

[0027] Specifically, when the connection between the driven rod 4 and the active rod 5 needs to be released after they are plugged in and limited, the end position of the T-shaped pressure rod 92 can be pressed, so that the T-shaped pressure rod 92 can move on the bracket 91. At this time, the spring 94 is in a compressed state. When one end of the T-shaped pressure rod 92 is pressed on the block 8 through the tip, the block 8 can be pressed out of the slot 42. This can release the fixed connection between the driven rod 4 and the active rod 5, making it convenient to disassemble and remove the adjacent PTC heater 1. Therefore, while satisfying the quick disassembly and assembly connection of the adjacent PTC heaters 1, it also satisfies the effect of the combined connection of the adjacent PTC heaters in the horizontal and vertical directions, which is more practical.

Claims

1. A combined PTC heater, comprising at least two PTC heaters (1), characterized in that: One end of each PTC heater (1) is fixedly connected to a fixed disk (2), a rotating disk (3) is connected to the fixed disk (2) in a damping rotation manner, an end surface of the rotating disk (3) is fixedly connected to a driven rod (4), a slot (41) is provided in the driven rod (4), and a clamping groove (42) connected to the slot (41) is provided on the outer surface of the driven rod (4), one end of the driven rod (4) is fixedly connected to an active rod (5), the size of the active rod (5) is matched with the size of the slot (41), a receiving groove (6) is provided on the outer surface of the active rod (5), an elastic telescopic member (7) is provided in the receiving groove (6), a clamping block (8) is provided on the elastic telescopic member (7), the clamping block (8) is used to movably clamp the clamping groove (42) on the driven rod (4), and a trigger structure (9) for pressing the clamping block (8) is provided on the driven rod (4).

2. A combined PTC heater according to claim 1, characterized in that: The fixed disk (2) and the rotating disk (3) are rotationally connected via a damping shaft.

3. A combined PTC heater according to claim 1, characterized in that: The active rod (5) is movably inserted into the slot (41).

4. A combined PTC heater according to claim 1, characterized in that: One side of the clamping block (8) is arranged in the form of an arc surface, and the other side of the clamping block (8) is arranged in the form of a rectangular surface.

5. The combined PTC heater according to claim 1, characterized in that: The elastic telescopic member (7) comprises a telescopic rod (71) fixedly connected to the inner wall of the storage groove (6) and a spring (72) sleeved on the telescopic rod (71), and the clamping block (8) is fixedly connected to one end of the telescopic rod (71).

6. A combined PTC heater according to claim 1, characterized in that: The trigger structure (9) comprises a bracket (91) fixedly connected to the outer surface of the driven rod (4), a T-shaped pressure rod (92) movably passing through the bracket (91), a limiting ring (93) fixedly connected to the T-shaped pressure rod (92) and a second spring (94) sleeved on the T-shaped pressure rod (92); when the clamping block (8) is set in the clamping groove (42), the T-shaped pressure rod (92) corresponds to a position on one side of the clamping block (8).

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