Dry-burning-resistant heater structure
By introducing anti-dry burning wire and thermostat design into the heater, real-time monitoring and control of the heater temperature is achieved, the risks of dry burning and leakage are avoided, and the safety and reliability of the heater are ensured.
Patent Information
- Application Number
- CN202420540497.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-20
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-03-20
AI Technical Summary
The existing heater design lacks anti-dry burning function, which can easily lead to damage to the heater, failure of the sealing device, major safety hazards, and even electric leakage and fire accidents.
An anti-dry burning heater structure is designed, including a heater, an anti-dry burning wire and a contactor. The heater temperature is monitored through a thermostat. When the temperature exceeds the preset value, the anti-dry burning wire is disconnected, the anti-dry burning heating circuit is disconnected, and the heater is stopped.
It effectively avoids fires caused by dry burn of the heater, reduces the risk of leakage, ensures the safety of the heater, and prevents the occurrence of dangerous accidents.
Smart Images
Figure CN222911982U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of PCB process equipment, and in particular relates to an anti-dry-burning heater structure. Background Art
[0002] The description in this section merely provides background information related to the disclosure of the present utility model and does not constitute prior art.
[0003] Heaters are widely used in industrial production and people's daily life. Press-bonding browning is a PCB pressing process equipment. It is currently designed that the temperature of the drying section controls the heating of the heater according to the set temperature. The heater body has no anti-dry burning function. The hazards of dry burning of the heater are as follows: it is easy to directly cause damage to the heater, causing the failure of the heater sealing device, posing a safety hazard, and causing more serious personal injury and property loss; when the heater is severely dry burned, it may cause leakage due to insulation damage, which may easily cause dangerous accidents of electric shock to people.
[0004] It should be noted that the above introduction to the technical background is only for the convenience of providing a clear and complete description of the technical solutions of the utility model and for the convenience of understanding by those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because these solutions are described in the background technology section of the utility model. Utility Model Content
[0005] In order to overcome the defects in the prior art, the utility model provides an anti-dry-burning heater structure, which can avoid fire caused by dry burning of the heater and reduce the risk of leakage. When the temperature of the heater body exceeds the temperature, the anti-dry-burning line can be controlled to disconnect, the heater and contactor coil can stop working, and the heater can be powered off and stop heating, thereby effectively preventing dangerous accidents.
[0006] The utility model discloses a dry-burning prevention heater structure, comprising:
[0007] Drying section;
[0008] A blower and a heating box, wherein the blower is connected to the heating box, and a heater is provided in the heating box;
[0009] The anti-dry burning wire and the contactor, the heater is connected to the anti-dry burning wire, the anti-dry burning wire is connected to the contactor and controls the contactor, the anti-dry burning wire is connected in series with the heater and the contactor to form an anti-dry burning heating circuit.
[0010] Furthermore, in the above-mentioned anti-dry-burning heater structure, the contactor is connected to a power switch to start or shut down the anti-dry-burning heating circuit.
[0011] Furthermore, in the above-mentioned anti-dry-burning heater structure, the blower and the heater are provided with a connecting pipe.
[0012] Furthermore, in the above-mentioned anti-dry-burning heater structure, a thermostat is provided in the heater, and the thermostat is provided with a preset temperature value. When the actual temperature value of the heater is greater than the preset temperature value, the power switch is turned off and the anti-dry-burning heating circuit is disconnected.
[0013] Furthermore, in the above-mentioned anti-dry-burning heater structure, a heating air knife is provided in the heating box.
[0014] It can be seen from the above technical solution that the utility model has the following beneficial effects:
[0015] The anti-dry-burning heater structure described in the utility model has an anti-dry-burning wire connected to the heater, the anti-dry-burning wire is connected to the contactor and controls the contactor, the anti-dry-burning wire is connected in series with the heater and the contactor to form an anti-dry-burning heating circuit, and a thermostat is provided in the heater, the thermostat is provided with a preset temperature value, when the actual temperature value of the heater is greater than the preset temperature value, the power switch is turned off, the anti-dry-burning heating circuit is disconnected, the dry burning of the heater can be avoided and a fire can be caused, and the risk of leakage is reduced. If the temperature of the heater body exceeds the temperature, the anti-dry-burning wire can be controlled to be disconnected, the heater and the contactor coil stop working, the heater is powered off and stops heating, and dangerous accidents are effectively prevented.
[0016] In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be 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 paying creative work.
[0018] Figure 1 It is a schematic diagram of the anti-dry-burning heater structure in an embodiment of the utility model.
[0019] The figure numbers of the above drawings are: 1. drying section; 2. blower; 3. heating box; 4. heater; 5. anti-dry burning line; 6. contactor; 7. power switch; 8. heating air knife. DETAILED DESCRIPTION
[0020] 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 in 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.
[0021] It should be noted that in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.
[0022] The utility model is described in detail below with reference to the accompanying drawings and embodiments.
[0023] Reference Figure 1 This embodiment provides an anti-dry-burning heater structure, including:
[0024] Drying section 1;
[0025] A blower 2 and a heating box 3, wherein the blower 2 is connected to the heating box 3, and a heater 4 is provided in the heating box 3;
[0026] The anti-dry-burning line 5 and the contactor 6, the heater 4 is connected to the anti-dry-burning line 5, the anti-dry-burning line 5 is connected to the contactor 6 and controls the contactor 6, the anti-dry-burning line 5 is connected in series with the heater 4 and the contactor 6 to form an anti-dry-burning heating circuit.
[0027] Specifically, in this embodiment, the contactor 6 is connected to the power switch 7 to start or shut down the anti-dry-burning heating circuit.
[0028] Specifically, in this embodiment, the blower 2 and the heater 4 are provided with a connecting pipe, so that the blower can inject wind into the heater 4 through the connecting pipe.
[0029] Specifically, in this embodiment, a thermostat is provided in the heater 4, and the thermostat is provided with a preset temperature value. When the actual temperature value of the heater 4 is greater than the preset temperature value, the power switch 7 is turned off and the anti-dry-burning heating circuit is disconnected.
[0030] Specifically, in this embodiment, a heating air knife 8 is provided in the heating box 3 .
[0031] By means of the above structure, the blower 2 is started, and the blower 2 injects wind into the heater 4 through the connecting pipe, and blows the heat of the heater 4 into the heating box 3 connected thereto. The heating air knife 8 can heat the workpiece so that it is heated evenly. The heater 4 is connected to an anti-dry burning line 5, and the anti-dry burning line 5 is connected to the contactor 6 and controls the contactor 6. The anti-dry burning line 5 is connected in series with the heater 4 and the contactor 6 to form an anti-dry burning heating circuit, and a thermostat is provided in the heater 4, and the thermostat is provided with a preset temperature value. When the actual temperature value of the heater 4 is greater than the preset temperature value, the power switch 7 is turned off, and the anti-dry burning heating circuit is disconnected. When the manufacturing unit uses the anti-dry burning heater structure in this embodiment to start production, it can avoid the fire caused by dry burning of the heater 4 and reduce the risk of leakage. When the temperature of the heater 4 body exceeds the temperature, the anti-dry burning line 5 can be controlled to be disconnected, the heater 4 and the contactor 6 coils stop working, and the heater 4 is powered off and stops heating, effectively preventing dangerous accidents.
[0032] The utility model uses specific embodiments to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the technical solution and core idea of the utility model. At the same time, for ordinary technicians in this field, according to the idea of the utility model, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the utility model.
Claims
1. A dry-burning prevention heater structure, characterized in that: include: Drying section; A blower and a heating box, wherein the blower is connected to the heating box, and a heater is provided in the heating box; The anti-dry burning wire and the contactor, the heater is connected to the anti-dry burning wire, the anti-dry burning wire is connected to the contactor and controls the contactor, the anti-dry burning wire is connected in series with the heater and the contactor to form an anti-dry burning heating circuit.
2. The anti-dry-burning heater structure according to claim 1, characterized in that: The contactor is connected to a power switch to start or shut down the anti-dry-burning heating circuit.
3. The anti-dry-burning heater structure according to claim 1, characterized in that: The blower and the heater are provided with a connecting pipe.
4. The anti-dry-burning heater structure according to claim 2, characterized in that: The heater is provided with a thermostat, and the thermostat is provided with a preset temperature value. When the actual temperature value of the heater is greater than the preset temperature value, the power switch is turned off and the anti-dry-burning heating circuit is disconnected.
5. The anti-dry-burning heater structure according to claim 1, characterized in that: A heating air knife is arranged in the heating box.