Measurement device with sealed interface
A measuring device and airtight technology, which is applied in the field of measuring devices with airtight interfaces, can solve problems such as signal leakage of circuit components, electromagnetic interference of internal circuits, and lax sealing of the housing, so as to achieve good signal leakage and prevent signal leakage Effect
Active Publication Date: 2014-06-18
RIGOL
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Problems solved by technology
[0004] The embodiment of the present invention solves the problem that the casing is not tightly closed due to too much solder when the interface is soldered on the circuit board in the prior art, resulting in signal leakage of circuit components on the internal circuit board or electromagnetic interference caused by the outside of the casing to the internal circuit. problem, a measuring device with an airtight interface is provided to solve the above problem by reserving a certain space on the inner wall of the interface for accommodating solder
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[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.
[0021] Such as figure 2 It is a schematic structural diagram of a measurement device with an airtight interface provided by an embodiment of the present invention.
[0022] The housing 201 has the interface slot 202, which is used to accommodate the circuit board of the measuring device welded inside the housing and protrudes from the interface of the housing. The interface slot 202 is divided into The inner sidewall 203 and the outer sidewall 204, the inner sidewall 203 contacts the welding part of the interface, the outer sidewall 204 contacts ...
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The invention relates to the technical field of testing and measurement, and particularly to a measurement device with a sealed interface. The device comprises a shell including an interface slot used for holding an interface which is soldered onto a circuit board of the device inside the shell and extends out of the shell. The interface slot comprises an inner side wall and an outer side wall. The inner side wall is opposite to a soldered part of the interface, and the outer side wall contacts with a joint part of the interface. The inner side wall comprises a space for holding tin solder. Through the device provided by an embodiment of the invention, as the space for holding tin solder is arranged in the inner wall of the interface slot and the outer side wall contacts with a joint of the interface flatly, signals can be well prevented from leaking.
Description
technical field [0001] The invention relates to the technical field of test and measurement, in particular to a measurement device with a hermetic interface. Background technique [0002] There are two types of SMA interface. The standard SMA is "external thread + hole" at one end, and "internal thread + pin" at the other end. Wireless devices using SMA interface are the most popular. More than 70% of APs, wireless routers and 90 More than 100% of wireless network cards with PCI interface use this interface. This interface is moderate in size, and many devices such as handheld walkie-talkies are also of this type. In the design of radio frequency circuits, some connectors such as MCX interface and MMCX interface are often used. These connectors are mainly used in the field of microwave transmission. In the circuit, SMA connectors, MCX or MMCX interfaces are often used for input and output signal. [0003] Taking the SMA interface as an example, the structure of the shieldi...
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IPC IPC(8): G01D21/00
Inventor 何毅军晋书军王华王悦王铁军李维森
Owner RIGOL