CN219199520U

CN219199520U - Thick film heater with accurate temperature measurement

Info

Publication number: CN219199520U
Application number: CN202320240626.4U
Authority: CN
Inventors: 佘群; 杨伟明; 方文平
Original assignee: Guangdong Shunde Hongyan Electronic Technology Co ltd
Current assignee: Guangdong Shunde Hongyan Electronic Technology Co ltd
Priority date: 2023-02-15
Filing date: 2023-02-15
Publication date: 2023-06-16
Anticipated expiration: 2033-02-15

Abstract

The utility model relates to a thick film heater with accurate temperature measurement, which comprises a heater main body and a temperature measurement unit, wherein the heater main body is provided with a liquid heating cavity, a water guide interface is arranged on the heater main body and is communicated with the liquid heating cavity, the temperature measurement unit comprises a probe and a mounting part, the probe penetrates through the heater main body and extends into the liquid heating cavity, the mounting part is fixedly connected with the heater main body, and the probe of the temperature measurement unit does not need to pass through the water guide interface and extends into the liquid heating cavity, so that the space into which the probe enters is relatively wider, the size of the probe can be relatively increased, the contact area with a detection water source can be increased after the probe extends into the liquid heating cavity, the water temperature is sensed more fully, and the detection precision is improved.

Description

Thick film heater with accurate temperature measurement

Technical Field

The utility model relates to the technical field of water heating devices, in particular to a thick film heater with accurate temperature measurement.

Background

The thick film heating tube is widely applied to products such as water heater, instant heating type tap, etc., and has the advantages of high heating speed and high heating efficiency for water.

The thick film heater needs to measure the water temperature heated by the temperature measuring mechanism, and the conventional thick film heater generally has the temperature measuring mechanism arranged on the water outlet channel. The patent document with the publication number of CN217234602U discloses an upper cover assembly of an instant heating type electric heating faucet, and the concrete disclosure of the upper cover assembly comprises an upper cover assembly of the instant heating type electric heating faucet, wherein the upper cover assembly comprises a water outlet joint communicated with a water outlet pipe, a water outlet channel is arranged in the water outlet joint, the upper cover assembly further comprises a mounting seat, a limiting plate and a temperature probe which are arranged outside the water outlet channel, a temperature measuring hole communicated with the water outlet channel is formed in the center of the mounting seat, and the temperature probe is inserted into the temperature measuring hole.

However, because the space of the water outlet joint is relatively narrow, the temperature probe cannot penetrate into the cavity for heating water, so that the contact area between the temperature probe and a detection water source is small, the temperature probe senses insufficient water temperature, and the detection accuracy is affected.

Therefore, further improvements are needed.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a thick film heater with accurate temperature measurement, which aims to solve at least one of the technical problems in the prior art to a certain extent.

The purpose of the utility model is realized in the following way:

the thick film heater comprises a heater main body and a temperature measuring unit, wherein the heater main body is provided with a liquid heating cavity, a water guide interface is arranged on the heater main body and is communicated with the liquid heating cavity, the temperature measuring unit comprises a probe and a mounting part, the probe penetrates through the heater main body and extends into the liquid heating cavity, and the mounting part is fixedly connected with the heater main body.

The heater main body comprises a main heating pipe and a joint part, the water guide joint is arranged on the joint part and extends along the length direction of the main heating pipe, an assembly hole is formed in the joint part corresponding to the position adjacent to the water guide joint, the probe penetrates through the assembly hole and extends towards the liquid heating cavity along the length direction of the main heating pipe, and the installation part is fixedly connected with the joint part.

The main heating pipe is detachably connected with the joint part.

And a sealing mechanism is arranged between the main heating pipe and the joint part.

The sealing mechanism comprises a sealing ring arranged on the inner side of the liquid heating cavity and a sealing flanging arranged on the end part of the liquid heating cavity, and the sealing ring and the sealing flanging are integrally formed.

The water inlet end and/or the water outlet end of the main heating pipe are/is connected with a joint part, and the joint part is connected with a corresponding temperature measuring unit.

The beneficial effects of the utility model are as follows:

because the probe of temperature measurement unit need not to pass through the water guide interface and extend into the liquid heating chamber, therefore the space that the probe got into is wider relatively, and the size of probe can increase relatively, can increase the area of contact with the detection water source after the probe extends into the liquid heating chamber simultaneously, and is more abundant to the response of temperature, promotes detection precision.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic cross-sectional view of an embodiment of the present utility model.

FIG. 2 is an exploded view of an embodiment of the present utility model.

Fig. 3 is an enlarged view at embodiment a of the present utility model.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

Referring to fig. 1-3, the thick film heater with accurate temperature measurement comprises a heater main body 1 and a temperature measurement unit 2, wherein the heater main body 1 is provided with a liquid heating cavity 12, a water guide interface 11 is arranged on the heater main body 1, and the water guide interface 11 is a structure for allowing an external water source to enter the liquid heating cavity 12 or allowing liquid to be supplied out from the liquid heating cavity 12, so that the size of the thick film heater is smaller than that of the liquid heating cavity 12.

The water guide interface 11 is communicated with the liquid heating cavity 12, the temperature measuring unit 2 comprises a probe 21 and a mounting part 22, the probe 21 penetrates through the heater main body 1 and extends into the liquid heating cavity 12, the mounting part 22 is fixedly connected with the heater main body 1, the probe 21 of the temperature measuring unit 2 does not need to pass through the water guide interface 11 and extends into the liquid heating cavity 12, therefore, the space into which the probe 21 enters is relatively wide, the size of the probe 21 can be relatively increased, the contact area with a water source to be detected can be increased after the probe 21 extends into the liquid heating cavity 12, the sensing of water temperature is more sufficient, and the detection precision is improved.

Further, the heater main body 1 comprises a main heating pipe 13 and a joint part 14, the water guide joint 11 is arranged on the joint part 14 and extends along the length direction of the main heating pipe 13, the joint part 14 is provided with an assembly hole corresponding to the position adjacent to the water guide joint 11, the probe 21 penetrates through the assembly hole and extends towards the liquid heating cavity 12 along the length direction of the main heating pipe 13, the mounting part 22 is fixedly connected with the joint part 14, and compared with the mode of mounting the temperature measuring unit 2 on the side wall of the heater main body 1, the space occupied by the whole thick film heater can be reduced by mounting the temperature measuring unit 2 at the position adjacent to the water guide joint 11, and the use and the installation are more convenient.

Further, the main heating pipe 13 is detachably connected with the joint part 14, so that the thick film heater can be conveniently disassembled, assembled and maintained.

Further, a sealing mechanism is arranged between the main heating pipe 13 and the joint part 14, so that the overall tightness of the thick film heater is improved, and leakage between the main heating pipe 13 and the joint part 14 is avoided.

Further, the sealing mechanism comprises a sealing ring 31 arranged on the inner side of the liquid heating cavity 12, and a sealing flange 32 arranged on the end part of the liquid heating cavity 12, wherein the sealing ring 31 and the sealing flange 32 are integrally formed.

Further, the water inlet end and/or the water outlet end of the main heating pipe 13 are/is connected with a joint part 14, the joint part 14 is connected with a corresponding temperature measuring unit 2, in this embodiment, the water inlet end and the water outlet end of the main heating pipe 13 are connected with the joint part 14, that is, different temperature measuring units 2 measure the temperature of the water flow at the water inlet end and the water outlet end of the main heating pipe 13, and the control device can adjust the water flow passing through the thick film heater and the heating power of the thick film heater according to the temperature difference of the temperature measuring unit 2, so that the working precision of the thick film heater is improved.

The above examples are only preferred embodiments of the utility model, and other embodiments of the utility model are possible. Equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the utility model, and these equivalent modifications or substitutions are intended to be included within the scope of the present claims.

Claims

1. The utility model provides a thick film heater of temperature measurement accuracy, includes heater main part (1) and temperature measurement unit (2), heater main part (1) have liquid heating chamber (12), are equipped with water guide interface (11) on heater main part (1), water guide interface (11) and liquid heating chamber (12) intercommunication, a serial communication port, temperature measurement unit (2) include probe (21) and installation department (22), probe (21) pass heater main part (1) and extend into liquid heating chamber (12), installation department (22) and heater main part (1) fixed connection.

2. The thick film heater of claim 1, wherein the temperature is measured accurately: the heater main body (1) comprises a main heating pipe (13) and a joint part (14), the water guide interface (11) is arranged on the joint part (14) and extends along the length direction of the main heating pipe (13), an assembly hole is formed in the joint part (14) corresponding to the position adjacent to the water guide interface (11), the probe (21) penetrates through the assembly hole and extends towards the liquid heating cavity (12) along the length direction of the main heating pipe (13), and the mounting part (22) is fixedly connected with the joint part (14).

3. The thick film heater of claim 2, wherein the temperature is measured accurately: the main heating pipe (13) is detachably connected with the joint part (14).

4. A thick film heater with accurate temperature measurement as claimed in claim 3, wherein: a sealing mechanism is arranged between the main heating pipe (13) and the joint part (14).

5. The thick film heater of claim 4, wherein said thick film heater is capable of measuring temperature accurately: the sealing mechanism comprises a sealing ring (31) arranged on the inner side of the liquid heating cavity (12) and a sealing flange (32) arranged on the end part of the liquid heating cavity (12), and the sealing ring (31) and the sealing flange (32) are integrally formed.

6. A thick film heater with accurate temperature measurement as claimed in any one of claims 2 to 5 wherein: the water inlet end and/or the water outlet end of the main heating pipe (13) are/is connected with a joint part (14), and the joint part (14) is connected with a corresponding temperature measuring unit (2).