Temperature sensor device

Abstract

The utility model discloses a temperature sensor device, which is characterized in that a protective shell comprises a wiring base and a protective sleeve fixed on the wiring base, a thermistor is arranged in a heat conduction shell, the thermistor is connected with a positive wire and a negative wire, and the heat conduction shell is inserted into one end, far away from the wiring base, of the protective sleeve; the positive wire and the negative wire extend out of one end, facing the protective sleeve, of the heat conduction shell, penetrate through the protective sleeve and are connected to the wiring base. The thermistor is completely wrapped by the heat conduction shell, the thermistor is completely isolated from a medium and is not directly exposed in a tested environment, and meanwhile, the heat conduction shell is used as a heat conduction part, so that the environment temperature is more directly transmitted to the thermistor, a more accurate detection result is obtained, and the heat conduction shell is protected by negative charges; the influence of oxidation corrosion is effectively avoided; in addition, the whole device is compact in structure and convenient to install and maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to temperature sensor device technical field, especially relate to a temperature sensor device. BACKGROUND

[0002] The existing temperature detection device or temperature detection device, namely temperature sensor, usually contains thermistor, shell and connector. The thermistor is exposed outside the shell. This will cause the thermistor to be exposed to the test environment and contact non-neutral medium. The shell is eroded. Long-term use will cause the temperature sensor sensitivity to decrease, feedback information deviation or even error, resulting in temperature device long-term overload work, causing damage or danger.

[0003] It can be seen that the prior art needs to be improved and improved. INVENTION CONTENTS

[0004] In view of the above shortcomings of the prior art, the utility model aims at providing a temperature sensor device to solve the problem of temperature sensor erosion in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a temperature sensor device, comprising heat conduction shell, thermistor, positive line, negative line and protective shell, the protective shell comprises wiring base and protective sleeve fixed on the wiring base, the heat conduction shell is provided with the thermistor, the thermistor is connected with the positive line and the negative line, the heat conduction shell is inserted in the protective sleeve away from the one end of wiring base, the positive line and negative line are stretched out from the one end of heat conduction shell towards protective sleeve, the positive line and negative line respectively penetrate the protective sleeve and are connected on the wiring base.

[0006] In an embodiment of the utility model, the wiring base is provided with positive terminal and negative terminal, the thermistor is connected on the positive terminal through the positive line, and the thermistor is connected on the negative terminal through the negative line.

[0007] The above embodiment has the beneficial effects that the positive terminal and the negative terminal are arranged on the wiring base, so that the thermistor can be connected to the corresponding terminal through the positive line and the negative line respectively, the circuit connection is simplified, the failure rate is reduced, and the reliability of the temperature sensor device is improved.

[0008] In an embodiment of the utility model, the thermistor is welded inside the heat conduction shell or fixed on the patch inside the heat conduction shell.

[0009] The beneficial effects of the above-mentioned embodiments are that the thermal resistance is welded inside the heat-conducting shell or the patch is fixed inside the heat-conducting shell, so that the contact area between the thermal resistance and the heat-conducting shell is increased, the heat transfer efficiency is improved, and the measurement accuracy is further improved.

[0010] In an embodiment of the present application, the heat-conducting shell is a metal shell or a heat-conducting plastic shell.

[0011] The beneficial effects of the above-mentioned embodiments are that the metal shell has high heat-conducting performance, can quickly transfer heat to the thermal resistance, and the heat-conducting plastic shell has light weight and low cost, so that the appropriate material is selected according to the actual application scene, the performance is ensured, and the cost is reduced.

[0012] In an embodiment of the present application, the heat-conducting shell is provided with a plug-in part plugged into the protective sleeve, and the positive line and the negative line are simultaneously extended from the end surface of the plug-in part.

[0013] In an embodiment of the present application, the protective shell is a plastic shell or a nylon shell.

[0014] As described above, the temperature sensor device of the present application has the following beneficial effects: the heat-conducting shell completely wraps the thermal resistance, completely isolates the thermal resistance from the medium, and does not directly expose the thermal resistance in the tested environment, at the same time, the heat-conducting shell is used as a heat-conducting part, so that the environmental temperature is more directly transferred to the thermal resistance, a more accurate detection result is obtained, and the heat-conducting shell is protected by negative charge, so that the heat-conducting shell is not affected by oxidation corrosion; in addition, the whole device has a compact structure, is convenient to install and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0016] Figure 1 The structure diagram of the temperature sensor device provided by the present application is shown in the figure.

[0017] Figure 2 The partial structure diagram of the temperature sensor device provided by the present application is shown in the figure.

[0018] Element number explanation

[0019] 1 heat conduction shell, 2 thermistor, 3 positive line, 4 negative line, 5 protective shell, 51 wiring base, 52 protective sleeve, 53 positive terminal, 54 negative terminal. DETAILED DESCRIPTION

[0020] The utility model provides a temperature sensor device, for the purpose, technical scheme and effect of the utility model are more clear, explicit, the following reference drawing and take example for further detailed description of the utility model.

[0021] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "up and down, left and right" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as a limitation on the utility model; in addition, the terms "mounting", "connecting" and the like should be broadly understood, and for ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0022] Please refer to Figure 1 and Figure 2 The utility model provides a temperature sensor device, including heat conduction shell 1, thermistor 2, positive line 3, negative line 4 and protective shell 5, the protective shell 5 includes wiring base 51 and the protection sleeve 52 of fixed on wiring base 51, the heat conduction shell 1 is provided with thermistor 2, the thermistor 2 is connected with positive line 3 and negative line 4, the heat conduction shell 1 is inserted in the protection sleeve 52 far from the one end of wiring base 51, positive line 3 and negative line 4 from heat conduction shell 1 towards the one end of protection sleeve 52 stretch out, positive line 3 and negative line 4 respectively pass through protection sleeve 52 and are connected on wiring base 51.

[0023] Optionally, the thermistor 2 can be firmly installed inside the heat-conducting shell 1 in two main ways: one is welding, and the other is patch fixing. Specifically, if welding is adopted, the pins of the thermistor 2 will be directly fused with the metal structure inside the heat-conducting shell 1. This physical connection not only ensures the stability of the thermistor 2, but also greatly increases the contact area between them. The increase in contact area means that heat can be transferred more quickly and efficiently through the heat-conducting shell 1 to the thermistor 2, thereby improving the efficiency of heat transfer. On the other hand, if patch fixing is chosen, the thermistor 2 will be tightly attached to the inner wall of the heat-conducting shell 1 using special patch materials such as heat-conducting glue or double-sided tape. This method can also effectively increase the contact area between the thermistor 2 and the heat-conducting shell 1, and due to the heat-conducting properties of the patch material, it can also ensure efficient heat transfer. Whether it is welding or patch fixing, the goal is to optimize the heat exchange path between the thermistor 2 and the heat-conducting shell 1, reduce thermal resistance, and thus improve the measurement accuracy of the entire system.

[0024] In this embodiment, the heat-conducting shell 1 is provided with a plug-in part that plugs into the protective sleeve 52, and the positive line 3 and the negative line 4 simultaneously extend from the end face of the plug-in part. The wire base 51 is provided with a positive terminal 53 and a negative terminal 54, and the thermistor 2 is connected to the positive terminal 53 through the positive line 3, and the thermistor 2 is connected to the negative terminal 54 through the negative line 4. That is, the positive terminal 53 and the negative terminal 54 are provided on the wire base 51, so that the thermistor 2 can be connected to the corresponding terminals through the positive line 3 and the negative line 4 respectively, simplifying the circuit connection, reducing the failure rate, and improving the reliability of the temperature sensor device.

[0025] In order to make the structure of the entire device more compact, the positive line 3 and the negative line 4 are respectively welded with the heat-conducting shell 1 to form an integral whole, which is connected with the protective shell 5 and then integrally injection molded, thereby obtaining a finished product of the temperature sensor device.

[0026] Optionally, the heat-conducting shell 1 is a metal shell or a heat-conducting plastic shell, and the protective shell 5 is a plastic shell or a nylon shell. The metal shell has high heat-conducting performance and can quickly transfer heat to the thermistor 2; while the heat-conducting plastic shell has lighter weight and lower cost. By selecting appropriate materials according to actual application scenarios, performance can be guaranteed while cost is reduced. Preferably, the heat-conducting shell 1 is a copper shell, and the protective shell 5 is a plastic shell.

[0027] In summary, the temperature sensor device, the heat conduction shell 1 fully wraps the thermistor 2, the thermistor 2 is completely isolated from the medium and is not directly exposed in the test environment, and the heat conduction shell 1 is used as a heat conduction part, so that the ambient temperature is more directly transmitted to the thermistor 2, and more accurate detection results are obtained, and the heat conduction shell 1 has the protection of negative charge, effectively not affected by oxidation corrosion; In addition, the structure of the whole device is compact, convenient to install and maintain.

[0028] It can be understood that, for those skilled in the art, equivalent replacement or change can be made according to the technical scheme and the utility model concept of the utility model, and all these changes or replacements shall belong to the protection scope of the utility model.

Claims

1. A temperature sensor device, characterized by The temperature sensor comprises a heat-conducting shell, a thermistor, a positive electrode wire, a negative electrode wire and a protective shell, the protective shell comprises a wiring base and a protective sleeve fixed on the wiring base, the thermistor is arranged in the heat-conducting shell, the positive electrode wire and the negative electrode wire are connected to the thermistor, the heat-conducting shell is inserted into the protective sleeve away from the wiring base, the positive electrode wire and the negative electrode wire are extended from the heat-conducting shell to the end of the protective sleeve, and the positive electrode wire and the negative electrode wire respectively penetrate the protective sleeve and are connected to the wiring base.

2. The temperature sensor device of claim 1, wherein, The wiring base is provided with a positive electrode terminal and a negative electrode terminal, the thermistor is connected to the positive electrode terminal through the positive electrode wire, and the thermistor is connected to the negative electrode terminal through the negative electrode wire.

3. The temperature sensor device of claim 2, wherein, The thermistor is welded in the heat-conducting shell or a patch is fixed in the heat-conducting shell.

4. The temperature sensor device of claim 2, wherein, The heat-conducting shell is a metal shell or a heat-conducting plastic shell.

5. The temperature sensor device of claim 1, wherein, The heat-conducting shell is provided with an insertion part inserted into the protective sleeve, and the positive electrode wire and the negative electrode wire are simultaneously extended from the end surface of the insertion part.

6. The temperature sensor device of claim 1, wherein, The protective shell is a plastic shell or a nylon shell.

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