Heater assembly, heating monitoring system and gearbox
By installing a temperature sensor detection end and a temperature control system on the heater, the problem of dry burning of the heater in the tilted gearbox is solved, and the temperature monitoring and control of the heater is realized, thus avoiding heater burn-out.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-24
AI Technical Summary
In cold climates, the tail end of the heater in a tilted gearbox is easily exposed above the oil level, leading to the risk of dry burning. Existing technologies make it difficult to effectively monitor and avoid heater burnout.
The temperature sensor's detection end extends from the measured part of the heater and contacts a designated position. Combined with a temperature controller and a relay, it enables temperature monitoring and control of the heater, preventing dry burning.
It enables real-time monitoring and control of the temperature of specific parts of the heater, avoiding heater burn-out, and is suitable for applications such as gearboxes installed at an angle.
Smart Images
Figure CN224037517U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electric heating, in particular to a heater assembly, a heating monitoring system and a gear box. BACKGROUND
[0002] Maintaining the oil temperature of the gear box under cold weather conditions is a necessary condition to ensure the normal start and operation of the gear box. A feasible way is to assemble a heater in the gear box to heat the oil.
[0003] In order to realize the rapid and sufficient heating of the oil, the heater is usually arranged in a long cylindrical shape and laid in the oil area. Due to the limitation of installation space and other factors, the gear box sometimes needs to be installed obliquely, which causes the heater to be partially exposed above the oil level under low temperature conditions, usually the tail end of the heater is exposed above the oil level, which has the risk of dry burning.
[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the utility model, and therefore can include information that does not constitute prior art known to those skilled in the art. INVENTION CONTENTS
[0005] Therefore, the utility model provides a heater assembly, a heating monitoring system and a gear box, which can conveniently monitor the temperature of a specific part of the heater, avoid burning of the heater, and are suitable for application scenarios such as obliquely installed gear boxes.
[0006] According to one aspect of the utility model, a heater assembly is provided, comprising: a heater; a temperature sensor having a body part, a connecting end and a detection end, the body part being built in the heater, the connecting end and the detection end respectively extending out of the heater, wherein the detection end extends out of a measured part of the heater and contacts a specified position of the measured part.
[0007] In some embodiments, the measured part is provided with a first through hole, and the detection end is bent after extending out of the first through hole and tightly contacts the specified position.
[0008] In some embodiments, the detection end tightly contacts the specified position by means of adhesion, welding or crimping.
[0009] In some embodiments, the detection end is adhered to the specified position by an adhesive.
[0010] In some embodiments, the detection end and the first through hole are fixed by an adhesive.
[0011] In some embodiments, the power connection end of the heater is provided with a second through hole, a wire harness guide is embedded in the second through hole, and the connecting end passes through the wire harness guide and extends out.
[0012] In some embodiments, the heater is formed in a cylindrical shape, and the power connection end and the measured part of the heater are distributed at two ends of the heater; the temperature sensor is formed in a strip shape, and the detection end and the connection end are distributed at two ends of the body part.
[0013] In some embodiments, the temperature sensor is a thermocouple.
[0014] According to another aspect of the present application, a heating monitoring system is provided, comprising: the heater assembly according to any of the above embodiments; a temperature controller, the connection end of the temperature sensor is connected to the temperature controller; a relay, which is arranged in the power supply circuit of the heater and is connected to the temperature controller.
[0015] According to still another aspect of the present application, a gear box is provided, which is configured with the heater assembly according to any of the above embodiments, or is configured with the heating monitoring system according to any of the above embodiments; wherein the bottom of the gear box is provided with an oil area, the heater is arranged in the oil area, the measured part is exposed from the oil area under partial working conditions, and the specified position is the highest position of the measured part.
[0016] The present application has at least the following beneficial effects compared with the prior art:
[0017] The body part of the temperature sensor is built in the heater, which facilitates the installation of the temperature sensor and keeps the relative position between the temperature sensor and the heater stable; the detection end of the temperature sensor is extended from the measured part of the heater and contacts the specified position of the measured part, so as to realize the temperature detection of the specified position; the connection end of the temperature sensor is extended from the heater, so as to be connected to the controller device such as the temperature controller, and the controller device controls the heater based on the temperature detected by the temperature sensor, such as executing the power-off control of the heater when the temperature exceeds the set safety threshold, etc. The heater assembly of the present application can conveniently monitor the temperature of the specific part of the heater, avoid the burning of the heater, and is suitable for application scenarios such as the gear box installed obliquely.
[0018] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF DRAWINGS
[0019] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments consistent with the present application and, together with the description, further serve to explain the principles of the application. It is to be understood that the drawings are only illustrative of certain embodiments of the application and that, to the extent used, the same elements in different drawings are numbered alike.
[0020] Figure 1 A cross-sectional structure schematic diagram of a heater assembly in an embodiment of the present application is shown.
[0021] Figure 2 A cross-sectional structure schematic diagram of a heater assembly in an embodiment of the present application is shown. Figure 1 A cross-sectional structure schematic diagram of a heater assembly in an embodiment of the present application is shown.
[0022] Figure 3 A cross-sectional structure schematic diagram of a heater assembly in an embodiment of the present application is shown. Figure 1 A cross-sectional structure schematic diagram of a heater assembly in an embodiment of the present application is shown.
[0023] Figure 4 A circuit module schematic diagram of a heating monitoring system in an embodiment of the present application is shown. DETAILED DESCRIPTION
[0024] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the implementations set forth herein. Rather, these implementations are provided as example (ies) so that this disclosure will be thorough and complete, and will fully convey the scope of the example (ies) to those skilled in the art.
[0025] The accompanying drawings are not necessarily to scale, and are shown by way of example and not limitation. Wherever possible, like reference numbers will be used throughout the drawings, including in different figures, to attempt to avoid confusion.
[0026] The terms "first", "second", and similar terms do not denote any order, quantity, or importance, but are used to identify different components. The terms "high", "low", and the like indicate the orientation or positional relationship shown in the drawings, and are used only to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application. In addition, in the description of the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication of two elements.
[0027] It should be noted that the features of the embodiments of the present application and different embodiments can be combined with each other without conflict.
[0028] Figure 1 The cross-sectional structure of the heater assembly is shown, referring to Figure 1 The heater assembly provided by the embodiments of the present application comprises:
[0029] The heater 100;
[0030] The temperature sensor 200 has a body part 210, a connecting end 220 and a detection end 230, the body part 210 is built in the heater 100, the connecting end 220 and the detection end 230 respectively extend out of the heater 100, wherein the detection end 230 extends out of the measured part 110 of the heater 100 and contacts the specified position 110a of the measured part 110.
[0031] The body part 210 of the temperature sensor 200 is built in the heater 100, which facilitates the installation of the temperature sensor 200 and keeps the relative position between the temperature sensor 200 and the heater 100 stable; the detection end 230 of the temperature sensor 200 extends out of the measured part 110 of the heater 100 and contacts the specified position 110a of the measured part 110, so as to realize the temperature detection of the specified position 110a; the connecting end 220 of the temperature sensor 200 extends out of the heater 100, so as to be connected with the controller device such as a temperature controller, so that the controller device controls the heater 100 based on the temperature detected by the temperature sensor 200, for example, executes the power-off control of the heater 100 when the detected temperature exceeds the set safety threshold, and the like. The heater assembly of the present application can conveniently monitor the temperature of the specific part of the heater 100, avoid the burning loss of the heater 100, and is suitable for the application scenarios such as the gear box installed obliquely.
[0032] Specifically, in the application scenario of the gear box installed obliquely, the tail end of the heater 100 is easy to be exposed above the oil level, and there is a risk of dry burning. The heater assembly of the present application is configured, the detection end 230 of the temperature sensor 200 contacts the highest position of the tail end of the heater 100 (in the present application scenario, the measured part 110 is the tail end of the heater 100, and the specified position 110a is the highest position of the tail end), and the temperature of the highest position of the tail end of the heater 100 is detected and transmitted in real time during the operation of the heater 100, so as to realize the temperature monitoring of the specific part of the heater 100 and effectively avoid the burning loss of the heater 100.
[0033] The heater assembly can also be applied to other working conditions which need heating and have temperature overload risk, the temperature sensor 200 is used for monitoring the temperature of the specified position 110a of the measured part 110 of the heater 100, and the safety of the heater 100 is ensured. Wherein the measured part 110 refers to the part of the heater 100 which needs temperature monitoring, for example, the exposed area, the heat concentration area, the weak and vulnerable area of the heater 100, and the like, and the specified position 110a refers to the position which can reflect the temperature rise in the measured part 110, the position which is convenient for detecting the temperature, or other suitable positions.
[0034] In different application scenarios, the shape and size of the heater 100 can be set as needed, for example, long tube shape, spiral shape and the like. The temperature sensor 200 can be formed in a thin strip shape, which is convenient to be built-in in the heater 100, and the connecting end 220 of the temperature sensor 200 extends from the suitable part of the heater 100 to connect the control device, and the detection end 230 extends from the measured part 110 of the heater 100 and contacts the specified position 110a of the measured part 110. However, it is not limited thereto, and the shape and size of the temperature sensor 200 can also be adjusted as needed.
[0035] In one specific implementation, the heater 100 is formed in a cylindrical shape, so as to be assembled into the gear box, to realize uniform and sufficient heating of the oil liquid at the bottom of the gear box, and the power connection end 120 (connected to the power supply circuit) and the measured part 110 of the heater 100 are distributed at both ends of the heater 100. Correspondingly, the temperature sensor 200 is formed in a strip shape, and the detection end 230 and the connecting end 220 of the temperature sensor 200 are distributed at both ends of the body part 210, so that the body part 210 is conveniently arranged in the heater 100, and the detection end 230 and the connecting end 220 extend out to realize signal detection and transmission.
[0036] Figure 2 The schematic structure of the A area in the figure is shown Figure 1 The schematic structure of the A area in the figure is shown Figure 1 And Figure 2 In some embodiments, the measured part 110 is provided with a first through hole 110b, and the detection end 230 is bent and tightly attached to the specified position 110a after extending out of the first through hole 110b. The hole diameter of the first through hole 110b is set according to the diameter of the detection end 230 of the temperature sensor 200, so that the detection end 230 can pass through, and the first through hole 110b and the detection end 230 can be in a slight interference fit or a slight gap fit. The detection end 230 is bent and tightly attached to the specified position 110a after extending out, and is in fixed contact with the specified position 110a, so as to stably detect the temperature of the specified position 110a.
[0037] The detection end 230 can be attached to the designated position 110a by means of bonding, welding or crimping. For example, in one embodiment, the detection end 230 is bonded to the designated position 110a by means of a quick-drying adhesive or the like. In addition, the detection end 230 and the first through hole 110b can also be fixed by means of an adhesive to avoid loosening. In other embodiments, the detection end 230 can be crimped to the designated position 110a by means of a mechanical clip, or the detection end 230 can be fixedly attached to the designated position 110a by means of welding or the like.
[0038] Figure 3 The enlarged structure of the B region is shown in Figure 1 some embodiments, the power connection end 120 of the heater 100 is provided with a second through hole 120a, and a wire harness guide 122 is embedded in the second through hole 120a, and the connection end 220 passes through the wire harness guide 122 and extends out. Figure 1 Figure 3 The wire harness guide 122 is used for the connection end 220 of the temperature sensor 200 and the power connection wire of the heater 100 to pass through. The wire harness guide 122 can also ensure that the connection end 220 is fixed and avoids loosening, thereby further ensuring stable connection of the connection end 220 with the control device. The connection end 220 can also be provided with a connection terminal (not specifically shown in the figure) to be connected with the control device.
[0039] The wire harness guide 122 is used for the connection end 220 of the temperature sensor 200 and the power connection wire of the heater 100 to pass through. The wire harness guide 122 can also ensure that the connection end 220 is fixed and avoids loosening, thereby further ensuring stable connection of the connection end 220 with the control device. The connection end 220 can also be provided with a connection terminal (not specifically shown in the figure) to be connected with the control device.
[0040] In some embodiments, the temperature sensor 200 can be a thermocouple. The thermocouple has the advantages of wide measurement range and fast response speed, and has a simple and robust structure, and can stably detect the temperature of a specific part of the heater 100. In other embodiments, according to application requirements, the temperature sensor 200 can also be a thermal resistance, a thermistor, a digital sensor or other sensor devices capable of detecting temperature.
[0041] The utility model embodiment further provides a kind of heating monitoring system, Figure 4 The circuit module of the heating monitoring system is shown, and Figure 4 and Figure 1 As shown in the figure, the heating monitoring system comprises: a heater assembly; a temperature controller 300, the connection end 220 of the temperature sensor 200 is connected to the temperature controller 300; a relay 400, which is arranged in the power supply circuit of the heater 100 (the relay 400 can be connected to the power connection end 120 of the heater 100), and is connected to the temperature controller 300.
[0042] The temperature controller 300 is an automation device for monitoring and controlling temperature, which can output an electrical signal (such as a switching control signal) when the temperature reaches a set value, triggering other devices (in this embodiment, the relay 400) to perform corresponding actions. Specifically, during the operation of the heater 100, the temperature sensor 200 detects the temperature of the specified position 110a of the measured part 110 of the heater 100 in real time, and transmits the detection signal 200' to the temperature controller 300. A safety threshold (for example, 150℃) is preset in the temperature controller 300, and when the temperature represented by the detection signal 200' exceeds the safety threshold, the temperature controller 300 sends a switching control signal to the relay 400 to control the relay 400 to be turned off to cut off the power supply of the heater 100, so that the heater 100 stops working to avoid burning out.
[0043] In the embodiment, the relay 400 can be a solid-state relay (SSR) or other suitable type of relay, and the relay 400 and the temperature controller 300 can be integrated in a control box, but are not limited thereto.
[0044] The utility model embodiment further provides a gear box, which is provided with the heater assembly described in any of the above embodiments or the heating monitoring system described in the above embodiment. The gear box is provided with an oil area at the bottom, and the heater 100 is arranged in the oil area. The measured part 110 is exposed to the oil area under some working conditions, and the specified position 110a is the highest position of the measured part 110.
[0045] The gear box of the utility model can be applied to a wind power generation device and arranged in a fan cabin. Specifically, in the fan cabin, the gear box is installed at an inclined angle (about 5° to 11°), which may cause the tail end of the heater 100 to be exposed above the oil level under special working conditions such as cold start and oil shortage, and there is a risk of dry burning. After the heater 100 is installed in the gear box, the highest position of the tail end of the heater 100 is marked as the specified position 110a of the measured part 110. Then, a thermocouple or other suitable temperature sensor 200 (a through hole is provided in advance on the heater 100 for the temperature sensor 200 to pass through) is installed, so that the detection end 230 of the temperature sensor 200 extends from the measured part 110 of the heater 100 and contacts the specified position 110a of the measured part 110, realizing temperature detection of the specified position 110a. The device for performing temperature monitoring and control (including the temperature controller 300, the relay 400, etc.) can be built-in in the gear box, or externally arranged in the gear box and in the fan cabin, or integrated in the control device of the wind power generation device.
[0046] The gear box can also be applied to other transmission systems, and the temperature of the specified position 110a of the measured part 110 of the heater 100 can be monitored by using the temperature sensor 200, so that the safety of the heater 100 is ensured, and then the transmission performance of the gear box and the transmission system is ensured.
[0047] The above is a further detailed description of the utility model in combination with specific preferred embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all of them should be regarded as belonging to the protection scope of the utility model.
Claims
1. A heater assembly comprising a heater, characterised in that, Also includes: A temperature sensor has a body, a connecting end, and a sensing end. The body is built into the heater, and the connecting end and the sensing end extend out of the heater. The sensing end extends from the part of the heater to be measured and contacts a designated position of the part to be measured.
2. The heater assembly of claim 1, wherein, The part to be tested is provided with a first through hole, and the detection end extends out of the first through hole, bends and fits tightly against the designated position.
3. The heater assembly of claim 2, wherein, The detection end is attached to the designated position by means of bonding, welding or pressing.
4. The heater assembly of claim 3, wherein, The detection end is attached to the designated position with adhesive.
5. The heater assembly as claimed in claim 4, characterized in that, The detection end is fixed to the first through hole with adhesive.
6. The heater assembly as claimed in claim 1, characterized in that, The heater's power terminal is provided with a second through hole, in which a wire harness guide is embedded, and the connecting end passes through the wire harness guide and extends out.
7. The heater assembly as claimed in claim 1, characterized in that, The heater is formed in a cylindrical shape, and the electrical terminal of the heater and the part to be measured are distributed at both ends of the heater; The temperature sensor is formed in the shape of a strip, and the detection end and the connection end are distributed at both ends of the main body.
8. The heater assembly according to any one of claims 1-7, characterized in that, The temperature sensor is a thermocouple.
9. A heating monitoring system, characterized in that, include: The heater assembly as described in any one of claims 1-8; A temperature controller, wherein the connection terminal of the temperature sensor is connected to the temperature controller; A relay is installed in the power supply circuit of the heater and connected to the temperature controller.
10. A gearbox, characterized in that, It is equipped with a heater assembly as described in any one of claims 1-8, or with a heating monitoring system as described in claim 9; The gearbox has an oil zone at its bottom, the heater is located in the oil zone, the tested part is exposed in the oil zone under certain operating conditions, and the designated position is the highest point of the tested part.