An electric energy meter with cover opening detection

Abstract

The utility model relates to an electric energy meter with cover opening detection, comprising an electric energy meter housing, a control circuit board and a tail cover, the tail cover can be opened relative to the electric energy meter housing, the control circuit board is provided with a cover opening detection module and a cover opening switch, the cover opening switch is close to the tail cover, the electric energy meter housing is provided with a mounting column facing the cover opening switch, a key hole is penetrated through the mounting column, a key column is slidably provided in the key hole, a fixing ring is sleeved outside the mounting column, the inner wall of the fixing ring is tightly matched with the outer wall of the mounting column, the outer wall of the key column is integrally formed with the fixing ring through a deformable and resettable connecting ring, when the tail cover is covered, the outer end of the key column can be pushed on the tail cover, the inner end of the key column can trigger the cover opening switch, the cover opening switch is turned on, when the tail cover is opened, the key column is far away from the cover switch under the action of the connecting ring, and the cover opening switch is disconnected. The key column of the utility model is sleeved on the mounting column through the fixing ring, and is reset through the connecting ring, the structure is simple and compact, and the installation is also very convenient and quick.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy meters, in particular to an electric energy meter with cover opening detection. Background Art

[0002] In order to prevent electricity theft, a cover opening detection function is generally provided in smart electric energy meters. In the prior art, the trigger button of the cover opening detection structure generally adopts a spring reset, which has a relatively complex structure and is not very convenient to install. Summary of the invention

[0003] The purpose of the utility model is to provide an electric energy meter with cover opening detection, which can solve the technical problems mentioned in the background technology.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: an electric energy meter with cover opening detection comprises an electric energy meter housing, a control circuit board arranged in the electric energy meter housing, and a tail cover arranged on the tail of the electric energy meter housing, the tail cover can be opened relative to the electric energy meter housing, the control circuit board is provided with a cover opening detection module, and a cover opening switch electrically connected to the switch detection module, the cover opening switch is close to the tail cover, the electric energy meter housing is provided with a mounting column facing the cover opening switch, a key hole is penetrated through the mounting column, a key column is slidably arranged in the key hole, a fixing ring is sleeved on the outer wall of the mounting column, the inner wall of the fixing ring is tightly matched with the outer wall of the mounting column, the outer wall of the key column is integrally formed with the fixing ring through a deformable and resettable connecting ring, when the tail cover is covered, the outer end of the key column can be pushed on the tail cover, the inner end of the key column can trigger the cover opening switch, the cover opening switch is turned on, when the tail cover is opened, the key column is away from the cover opening switch under the action of the connecting ring, and the cover opening switch is turned off.

[0005] Preferably, the connecting ring is conical.

[0006] Preferably, the button column, the connecting ring and the fixing ring are integrally formed of a silicone material.

[0007] Preferably, a heat dissipation groove is provided on an end surface of the fixing ring close to the cover opening switch.

[0008] Preferably, the cover opening switch is configured as a conductive film, and a carbon film is provided on the inner end surface of the button column, and the carbon film contacts the conductive film to trigger the cover opening switch.

[0009] Compared with the prior art, the utility model has the beneficial effect that the button column of the utility model is sleeved on the mounting column of the electric energy meter housing through a fixing ring and is reset through a connecting ring. The structure is simple and compact, and the installation is also very convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 yes Figure 1 A partial enlarged view of .

[0012] Figure 3 It is a three-dimensional diagram of a key column of the utility model at one angle.

[0013] Figure 4 It is a three-dimensional diagram of the key column of the utility model from another angle.

[0014] Figure 5 It is a cross-sectional view of the key column of the utility model. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0016] like Figure 1-Figure 5 As shown, the utility model provides an electric energy meter with cover opening detection, comprising an electric energy meter housing 1, a control circuit board 2 arranged in the electric energy meter housing 1, and a tail cover 3 arranged on the tail of the electric energy meter housing 1, the tail cover 3 can be opened relative to the electric energy meter housing 1, the control circuit board 2 is provided with a cover opening detection module, and a cover opening switch 4 electrically connected to the switch detection module, the cover opening switch 4 is close to the tail cover 3, the electric energy meter housing 1 is provided with a mounting column 5 facing the cover opening switch 4, the mounting column 5 is penetrated by a button hole 6, and the button hole 6 is A button column 7 is provided for sliding, and a fixing ring 8 is provided on the outer surface of the mounting column 5. The inner wall of the fixing ring 8 is tightly matched with the outer wall of the mounting column 5. The outer wall of the button column 7 is integrally formed with the fixing ring 8 through a deformable and resettable connecting ring 9. When the tail cover 3 is closed, the outer end of the button column 7 can be pushed on the tail cover 3, and the inner end of the button column 7 can trigger the cover opening switch 4, and the cover opening switch 4 is turned on. When the tail cover 3 is opened, the button column 7 is away from the cover opening switch 4 under the action of the connecting ring 9, and the cover opening switch 4 is turned off.

[0017] When the utility model is installed, the button column 7 is inserted into the button hole 6 from the inner side of the electric energy meter housing 1, the fixing ring 8 is sleeved on the mounting column 5, and the fixing ring 9 and the mounting column 5 are tightly matched, so as to complete the installation of the button column 7. The structure is simple and compact, and the installation is also very convenient and quick. In the normal state of the utility model, the tail cover 3 is covered on the tail of the electric energy meter housing 1, the tail cover 3 presses on the outer end of the button column 7 and squeezes the button column 7 inward, the inner end of the button column 7 contacts the cover opening switch 4 and turns on the cover opening switch 4, and the switch detection module does not process it. At this time, the connecting ring 9 is deformed; when the tail cover 3 is opened, the tail cover 3 is no longer pressed on the outer end of the button column 7, the connecting ring 9 is reset and drives the button column 7 away from the cover switch 4, the cover opening switch 4 is disconnected, and the cover opening detection module detects the information and determines that the cover is opened. The utility model realizes whether the cover is opened by turning on or off the cover opening switch 4, which is convenient and reliable.

[0018] Preferably, the connecting ring 9 is conical, and the connecting ring 9 is easy to reset after being deformed.

[0019] Preferably, the button column 7, connecting ring 9 and fixing ring 8 are integrally formed of silicone material, so that the button column 7, connecting ring 9 and fixing ring 8 all have a certain elasticity, the button column 7 has a certain shock-absorbing performance, the connecting ring 9 is easy to reset after deformation, and the fixing ring 8 is easy to install and fix on the mounting column 5.

[0020] Preferably, a heat dissipation groove 10 is provided on an end surface of the fixing ring 8 close to the cover opening switch 4 , and heat generated by the cover opening switch 4 during use can be dissipated from the heat dissipation groove 10 .

[0021] Preferably, the cover opening switch 4 is configured as a conductive film, and a carbon film 11 is provided on the inner end surface of the button column 7. The carbon film 11 is conductive, and the carbon film 11 contacts the conductive film to trigger the cover opening switch 4. When the tail cover 3 is closed, the carbon film 11 on the button column 7 just contacts and connects the conductive film, and the cover opening switch 4 is turned on. When the tail cover 3 is opened, the carbon film 11 on the button column 7 separates from the conductive film, and the cover opening switch 4 is disconnected. The cover opening detection module detects the signal and determines that the cover is opened, and the detection is reliable.

[0022] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and the implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An electric energy meter with cover-opening detection, comprising an electric energy meter housing, a control circuit board arranged in the electric energy meter housing, and a tail cover arranged on the tail of the electric energy meter housing, the tail cover can be opened relative to the electric energy meter housing, characterized in that: The control circuit board is provided with a cover opening detection module and a cover opening switch electrically connected to the cover opening detection module, the cover opening switch is close to the tail cover, and the electric energy meter housing is provided with a mounting column facing the cover opening switch, the mounting column is penetrated by a key hole, and a key column is slidably arranged in the key hole, a fixing ring is sleeved on the mounting column, the inner wall of the fixing ring is tightly matched with the outer wall of the mounting column, and the outer wall of the key column is integrally formed with the fixing ring through a deformable and resettable connecting ring, when the tail cover is closed, the outer end of the button column can be pushed on the tail cover, and the inner end of the button column can trigger the cover opening switch, and the cover opening switch is turned on, and when the tail cover is opened, the button column is away from the cover opening switch under the action of the connecting ring, and the cover opening switch is turned off.

2. The electric energy meter with cover opening detection according to claim 1, characterized in that: The connecting ring is conical.

3. The electric energy meter with cover opening detection according to claim 2, characterized in that: The button column, the connecting ring and the fixing ring are integrally formed of a silicone material.

4. The electric energy meter with cover opening detection according to any one of claims 1 to 3, characterized in that: A heat dissipation groove is arranged on an end surface of the fixing ring close to the cover opening switch.

5. The electric energy meter with cover opening detection according to any one of claims 1 to 3, characterized in that: The cover opening switch is configured as a conductive film, and a carbon film is disposed on the inner end surface of the key column, and the carbon film contacts the conductive film to trigger the cover opening switch.

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