Shell structure of temperature controller

Abstract

The utility model discloses a housing structure of a temperature controller, which comprises a controller housing with an upper opening, and a fixing plate which is matched with the controller housing for use and is positioned at the upper opening of the controller housing, wherein the controller housing is internally provided with an upper opening and forms a fence for placing a circuit board substrate; a shell sealing plate matched with the enclosure for use is arranged in the controller shell; and the circuit board substrate is positioned in an accommodating cavity formed by the enclosure and the shell sealing plate. A sealing ring is arranged between the enclosure and the shell sealing plate, a ventilation channel is formed between the controller shell and the enclosure, and a ventilation opening penetrating through the ventilation channel is formed in the controller shell. Through the structural optimization design of the shell, on the premise that the standard size is kept unchanged, the ESD static immunity is well solved, temperature balance inside / outside the shell is well kept through ventilation of the holes in the periphery of the shell, and the temperature control precision requirement of the temperature control panel is met.

Description

Technical Field

[0001] The utility model relates to a temperature controller shell structure, in particular to a high-precision 86-box intelligent temperature control panel with a power line communication function. Under the premise of keeping the standard size of the 86-box unchanged, the temperature controller shell structure not only effectively improves the EMC electromagnetic compatibility performance of the product, but also maintains a very high temperature control accuracy. Background Art

[0002] With the increasing popularity and application of the concept of smart home, smart home products have developed from the early single-product intelligence to today's whole-house intelligence. The market has put forward the demand for interconnection between devices. In order to achieve interconnection between devices, the network wiring between electrical appliances has become more and more complicated and the cost has become higher and higher.

[0003] In order to realize the interconnection between various smart home devices, power communication (PLC, Power Line Communication) technology has been greatly developed. Among them, the 86-box smart control panel with power communication function, as the control center of various smart home products, is easy to install with its standard size. At the same time, it can use the existing power lines as the communication medium without additional wiring work, which greatly reduces the construction and maintenance costs of the communication system. It is increasingly recognized by the market and the demand is growing.

[0004] The 86-box smart control panel with power communication technology can use the existing power line as a communication medium without additional wiring, but because its communication interface shares the power line interface, its EMC (Electro Magnetic Compatibility) electromagnetic environment is very harsh, especially the EMS anti-interference requirements are higher, such as interference from surges, pulse groups, harmonics, etc. from the power grid. At the same time, the temperature and humidity environment of the installation of the 86-box smart controller is also relatively harsh. This kind of 86-box smart controller, if used as a thermostat, may be installed in various rooms in the home, such as bathrooms, kitchens, etc. Therefore, the anti-static ability of the 86-box smart controller panel used for temperature control is also very high. According to the national standard GB / T 17626.2-2018 electrostatic ESD (electro-static discharge) immunity requirements: + / -15KV (air discharge), + / -8KV (contact discharge).

[0005] For this type of 86-box intelligent control panel used for temperature control, in addition to solving very strict EMC electromagnetic compatibility issues, it is also necessary to fully consider how to ensure the temperature balance inside and outside the panel to ensure that the thermostat works accurately and stably. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a temperature controller housing structure, which is aimed at a high-precision 86-box intelligent temperature control panel with a power line communication function. Under the premise of keeping the standard size of the 86 boxes unchanged, it not only effectively improves the EMC electromagnetic compatibility performance of the product, but also maintains a very high temperature control accuracy.

[0007] In order to solve the above technical problems, the technical solution of the utility model is: a temperature controller shell structure, the temperature controller shell structure is installed on the switch box in the wall, and is connected to the pre-buried strong electricity of the wall, and its innovation lies in: the temperature controller shell structure includes a controller shell with an upper opening, a fixing plate used in combination with the controller shell and located at the upper opening position of the controller shell, an upper opening is provided in the controller shell to form an enclosure for placing a circuit board substrate, a shell sealing plate used in combination with the enclosure is provided in the controller shell, and the circuit board substrate is located in the accommodating cavity formed by the enclosure and the shell sealing plate;

[0008] A sealing ring is provided between the enclosure and the shell sealing plate;

[0009] A ventilation channel is formed between the controller housing and the enclosure, and a ventilation opening penetrating to the ventilation channel is arranged on the controller housing.

[0010] Preferably, the shape of the sealing ring is consistent with the cross-sectional shape of the enclosure; a gap for electrical insulation is provided between the fixing plate and the shell sealing plate, and the fixing plate, the shell sealing plate and the controller shell are all made of heat-insulating / insulating materials.

[0011] Preferably, the height of the enclosure is equal to 1 / 2-2 / 5 of the height of the controller housing.

[0012] Preferably, the controller housing is provided with a plurality of ventilation openings extending through the ventilation passage around the controller housing.

[0013] Preferably, the ventilation opening is one of a waist-shaped hole, a round hole, and a square hole arranged longitudinally or transversely.

[0014] Preferably, the housing sealing plate and the fixing plate are respectively provided with a first mounting hole and a second mounting hole for the interface on the circuit board substrate to pass through.

[0015] Preferably, a positioning block located above the shell sealing plate and passing through the second mounting hole is provided on the shell sealing plate, and the positioning block is provided with the first mounting hole for the interface on the circuit board substrate to pass through.

[0016] Preferably, the housing sealing plate and the positioning block are integrally formed.

[0017] Preferably, the controller housing is provided with a rivet hole located in the ventilation channel, and the fixing plate is provided with rivets or screws that pass through the fixing plate, the housing sealing plate and the circuit board substrate in sequence and anchor the rivet hole.

[0018] Preferably, at least two rivets or screws symmetrically distributed left and right are provided between the fixing plate and the controller housing.

[0019] The advantages of the utility model are: by adopting the above structure, the structural design of the panel shell, considering the working conditions of the temperature sensor, through the ventilation channel designed by the utility model with a ring enclosure and the vents on the controller shell, it has good ventilation, so that the temperature inside and outside the shell is balanced and the temperature difference is as small as possible. In order to meet EMC (Electro Magnetic Compatibility) electromagnetic compatibility, especially ESD (electro-static discharge), it is ensured that the circuit board substrate is in the closed accommodation cavity formed by the enclosure and the shell sealing plate, so that it has good anti-static ability.

[0020] Through the optimized design of the shell structure, while keeping the standard size unchanged, it not only solves the ESD (electro-static discharge) anti-static interference well, but also maintains the temperature balance inside and outside the shell through the ventilation holes around the shell, meeting the temperature control accuracy requirements of the temperature control panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Figure 1 The utility model is a three-dimensional exploded view of a shell structure of a temperature controller.

[0023] Figure 2 It is a front view of a shell structure of a temperature controller of the utility model.

[0024] Figure 3 The utility model is a top view of a shell structure of a temperature controller.

[0025] Figure 4 The utility model is a structural schematic diagram of a fixing plate in a shell structure of a temperature controller.

[0026] Figure 5 The utility model is a schematic structural diagram of a shell sealing plate in a shell structure of a temperature controller.

[0027] Figure 6 The utility model is a structural schematic diagram of a circuit board substrate in a shell structure of a temperature controller.

[0028] Figure 7 The utility model is a schematic diagram of the structure of a controller shell in a temperature controller shell structure.

[0029] Figure 8 The utility model is a structural schematic diagram of a temperature controller housing structure and a switch box when they are assembled and used.

[0030] In the figure: 1-controller housing, 2-fixing plate, 3-circuit board substrate, 4-enclosure, 5-housing sealing plate, 6-accommodating cavity, 7-ventilation channel, 8-ventilation port, 9-sealing ring, 10-first mounting hole, 11-second mounting hole, 12-positioning block, 13-riveting hole, 14-switch box. DETAILED DESCRIPTION

[0031] The shell structure of the temperature controller of the utility model is installed on the switch box 14 in the wall and is connected to the pre-buried strong electricity of the wall, including a controller housing 1 with an upper opening, a fixing plate 2 used in combination with the controller housing 1 and located at the upper opening position of the controller housing 1, an upper opening is provided in the controller housing 1 and a baffle 4 is formed for placing the circuit board substrate 3, a housing sealing plate 5 used in combination with the baffle 4 is provided in the controller housing 1, and the circuit board substrate 3 is located in the accommodating cavity 6 formed by the baffle 4 and the housing sealing plate 5. A sealing ring 9 is provided between the baffle 4 and the housing sealing plate 5. A ventilation channel 7 is formed between the controller housing 1 and the baffle 4, and a vent 8 penetrating to the ventilation channel 7 is provided on the controller housing 1.

[0032] By adopting the above structure, the structural design of the panel shell takes into account the working conditions of the temperature sensor, and through the ventilation channel 7 designed around the enclosure 4 of the utility model and the vents 8 on the controller shell 1, it has good ventilation, so that the temperature inside and outside the shell is balanced and the temperature difference is as small as possible. In order to meet EMC (Electro Magnetic Compatibility) electromagnetic compatibility, especially ESD (electro-static discharge) static electricity, it is ensured that the circuit board substrate 3 is in the closed accommodating cavity 6 formed by the enclosure 4 and the shell sealing plate 5, so that it has good anti-static ability. Through the structural optimization design of the shell, while keeping the standard size unchanged, not only the ESD (electro-static discharge) static electricity immunity is well solved, but also the ventilation of the holes around the shell is well maintained to maintain the temperature balance inside and outside the shell, meeting the temperature control accuracy requirements of the temperature control panel.

[0033] In order to meet the EMC (Electro Magnetic Compatibility) electromagnetic compatibility to the maximum extent, the shape of the sealing ring 9 is consistent with the cross-sectional shape of the enclosure 4. In order to isolate strong electricity and weak electricity to the maximum extent, a gap for electrical insulation is set between the fixing plate and the shell sealing plate. In order to ensure the heat insulation and insulation effect of the utility model, the fixing plate, the shell sealing plate and the controller shell are all made of heat insulation / insulating materials.

[0034] In order to achieve reasonable layout planning, the height of the enclosure 4 is equal to 1 / 2-2 / 5 of the height of the controller housing 1. In order to ensure better ventilation effect, the controller housing 1 is provided with a plurality of vents 8 that penetrate the ventilation channel 7 around the controller housing 1. The vents 8 are one of waist-shaped holes, round holes, and square holes arranged longitudinally or transversely.

[0035] In order to ensure that the interface on the circuit board substrate 3 is connected to the external electronic components, the housing sealing plate 5 and the fixing plate 2 are respectively provided with a first mounting hole 10 and a second mounting hole 11 through which the interface on the circuit board substrate 3 passes. The housing sealing plate 5 is provided with a positioning block 12 located above the housing sealing plate 5 and passing through the second mounting hole 11, and the positioning block 12 is provided with the first mounting hole 10 through which the interface on the circuit board substrate 3 passes. In order to facilitate molding processing, the housing sealing plate 5 and the positioning block 12 are integrally formed.

[0036] In order to achieve the connection between the fixing plate 2, the housing sealing plate 5, the circuit board substrate 3 and the controller housing 1, the controller housing 1 is provided with a rivet hole 13 located in the ventilation channel 7, and the fixing plate 2 is provided with rivets or screws that pass through the fixing plate 2, the housing sealing plate 5 and the circuit board substrate 3 in sequence and anchor the rivet hole 13. In order to ensure the connection effect, at least two rivets or screws distributed symmetrically on the left and right are provided between the fixing plate 2 and the controller housing 1.

[0037] It should be understood that the above description is for illustration and not for limitation. By reading the above description, many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents possessed by these claims. For the purpose of comprehensiveness, all articles and references, including the disclosures of patent applications and announcements, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended to abandon the subject matter, nor should it be considered that the inventor has not considered the subject matter as part of the disclosed utility model subject matter.

Claims

1. A temperature controller housing structure, which is installed on a switch box in a wall and connected to a pre-buried strong current in the wall, wherein: The temperature controller housing structure comprises a controller housing with an upper opening, a fixing plate assembled with the controller housing and located at the upper opening of the controller housing, an upper opening is provided in the controller housing to form a fence for placing a circuit board substrate, a housing sealing plate assembled with the fence is provided in the controller housing, and the circuit board substrate is located in a receiving cavity formed by the fence and the housing sealing plate; A sealing ring is provided between the enclosure and the shell sealing plate; A ventilation channel is formed between the controller housing and the enclosure, and a ventilation opening penetrating to the ventilation channel is arranged on the controller housing.

2. A temperature controller housing structure as claimed in claim 1, characterized in that: The shape of the sealing ring is consistent with the cross-sectional shape of the enclosure; A gap for electrical insulation is provided between the fixing plate and the housing sealing plate, and the fixing plate, the housing sealing plate and the controller housing are all made of heat-insulating / insulating materials.

3. A temperature controller housing structure as claimed in claim 1, characterized in that: The height of the enclosure is equal to 1 / 2-2 / 5 of the height of the controller housing.

4. A temperature controller housing structure as claimed in claim 1, characterized in that: The controller housing is provided with a plurality of ventilation openings which are connected to the ventilation passage around the controller housing.

5. A temperature controller housing structure as claimed in claim 4, characterized in that: The ventilation opening is one of a waist-shaped hole, a round hole, and a square hole arranged longitudinally or transversely.

6. A temperature controller housing structure as claimed in claim 1, characterized in that: The housing sealing plate and the fixing plate are respectively provided with a first mounting hole and a second mounting hole for the interface on the circuit board substrate to pass through.

7. A temperature controller housing structure as claimed in claim 6, characterized in that: The housing sealing plate is provided with a positioning block located above the housing sealing plate and passing through the second mounting hole, and the positioning block is provided with the first mounting hole for the interface on the circuit board substrate to pass through.

8. A temperature controller housing structure as claimed in claim 7, characterized in that: The housing sealing plate and the positioning block are integrally formed.

9. A temperature controller housing structure as claimed in claim 1, characterized in that: The controller housing is provided with a rivet hole located in the ventilation channel, and the fixing plate is provided with rivets or screws which pass through the fixing plate, the housing sealing plate and the circuit board substrate in sequence and anchor the rivet hole.

10. A temperature controller housing structure as claimed in claim 9, characterized in that: At least two rivets or screws are arranged between the fixing plate and the controller housing and are symmetrically distributed on the left and right sides.

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