CN217236831U

CN217236831U - Needle type sensor

Info

Publication number: CN217236831U
Application number: CN202220798738.7U
Authority: CN
Inventors: 李大田; 王振; 冯永飞
Original assignee: Beijing Cetpower Co ltd
Current assignee: BEIJING JIAJIE HENGXIN ENERGY TECHNOLOGY CO LTD
Priority date: 2022-04-08
Filing date: 2022-04-08
Publication date: 2022-08-19
Anticipated expiration: 2032-04-08

Abstract

The utility model provides a needle type sensor, which relates to the field of sensing equipment and solves the technical problem that the probe is easy to be separated from the measuring position, which causes poor contact between the probe and the measuring position; the needle type sensor comprises a probe, an elastic part and a connecting piece, wherein an accommodating cavity is formed in the connecting piece, and at least part of the probe is positioned in the accommodating cavity and is connected with a signal cable; the two ends of the elastic part respectively abut against the probe and the connecting piece, and when the needle type sensor is connected into the detection equipment, the elastic part is in a compressed state under the action of gravity of the detection equipment, so that the probe is in close contact with the measured position. When detecting, check out test set can cover and close on the measured object, and under check out test set's action of gravity, the elastic component is in compression state, and under the elastic force effect of elastic component, the elastic component can promote probe and measured position in close contact with, prevents that probe and measured object from taking place to break away from and leading to contact failure's problem to appear, has guaranteed the accurate survey of information such as measured object voltage, temperature.

Description

Needle type sensor

Technical Field

The utility model belongs to the technical field of sensing equipment technique and specifically relates to a needle type sensor is related to.

Background

The needle type sensor comprises a pressure sensor, a temperature sensor and the like, and can be used for measuring the voltage, the temperature and the like of a measured object, such as the real-time voltage and the temperature of a storage battery. The needle type sensor comprises a needle type probe, and the transmission of a voltage signal or a temperature signal can be realized only by ensuring that the needle type probe is ensured to be contacted with a measured position during measurement.

The applicant has found that the prior art has at least the following technical problems: when the existing needle type sensor is used, a needle type probe is easy to be separated from a measured position, poor contact is caused, and measurement of voltage, temperature and the like is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a needle type sensor to solve the technical problem that the probe in the prior art is easy to be separated from the measuring position, which causes poor contact between the probe and the measuring position; the utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a pair of needle type sensor, including probe, elasticity portion and connecting piece, wherein:

an accommodating cavity is formed in the connecting piece, and at least part of the probe is positioned in the accommodating cavity and is connected with the signal cable; the two ends of the elastic part respectively abut against the probe and the connecting piece, and when the needle type sensor is connected into the detection equipment, the elastic part is in a compressed state under the action of gravity of the detection equipment, so that the probe is in close contact with the measured position.

Preferably, the peripheral wall of the connecting piece is provided with an external thread for being in threaded connection with the insulating piece of the detection equipment.

Preferably, a boss structure is arranged on the probe, and the outer diameter of the boss structure is larger than that of the rest part of the probe and is used for abutting against the lower end of the elastic part.

Preferably, the connecting piece comprises a bolt body, the bolt body is connected with a locking nut, and the locking nut and the end head of the bolt body are used for clamping two sides of the insulating piece of the detection equipment.

Preferably, the elastic part comprises a compression spring, and the compression spring is sleeved on the periphery of the probe.

Preferably, a limiting cavity is further arranged in the lower end of the connecting piece, the limiting cavity is communicated with the accommodating cavity, the limiting cavity surrounds the periphery of the accommodating cavity, and the upper end of the elastic part is located in the limiting cavity and abuts against the upper wall of the limiting cavity.

Preferably, the probe is a temperature probe, and the signal cable penetrates through the connecting piece and is arranged along the axis of the connecting piece.

Preferably, the lower end of the temperature probe is provided with a detection surface for contacting with a measured position.

Preferably, the probe is a voltage probe, the end of the signal cable is provided with a mounting washer, and the mounting washer is sleeved on the connecting piece and is clamped and fixed by two nut pieces.

Preferably, the lower end of the voltage probe is provided with a detection tip for contacting with a measured position.

The utility model provides a needle type sensor compares with prior art, has following beneficial effect: the needle sensor is used for fixing the temperature, the voltage and the like of a measured object (such as a storage battery and the like) to be measured in the detection equipment, when the probe is used for detecting, the part of the probe, which is in contact with the measured object, is arranged downwards, the detection equipment can be covered on the measured object, the elastic part is in a compression state under the action of gravity of the detection equipment, and under the action of the elastic force of the elastic part, the elastic part can push the probe to be in close contact with a measured position, so that the problem that the probe is separated from the measured object to cause poor contact is prevented, and the accurate measurement of the voltage, the temperature and other information of the measured object is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a temperature sensor as a needle-type sensor;

FIG. 2 is a schematic diagram of a front view of a temperature sensor;

FIG. 3 is a schematic cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic perspective view of a voltage sensor as a needle sensor;

FIG. 5 is a schematic diagram of a front view of a voltage sensor;

fig. 6 is a schematic cross-sectional view at B-B in fig. 5.

In figure 1, a probe; 11. detecting a surface; 12. detecting the tip part; 2. an elastic portion; 21. a boss structure; 3. a bolt body; 31. a tip; 32. an accommodating chamber; 33. a limiting cavity; 4. a signal cable; 5. locking the nut; 6. installing a gasket; 7. a nut member; 8. and (7) a gasket.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment of the utility model provides a can guarantee probe and inferior dirty position in close contact with's needle type sensor all the time.

The technical solution provided by the present invention will be explained in more detail with reference to fig. 1-6.

As shown in fig. 1 to 6, the present embodiment provides a needle sensor including a probe 1, an elastic portion 2, and a connecting member (the connecting member includes a bolt body 3 in the present embodiment), in which: an accommodating cavity 32 is formed in the connecting piece (the bolt body 3), and at least part of the probe 1 is positioned in the accommodating cavity 32 and is connected with the signal cable 4; two ends of the elastic part 2 respectively abut against the probe 1 and the connecting piece, and when the needle type sensor is connected in the detection equipment, the elastic part 2 is in a compressed state under the action of gravity of the detection equipment, so that the probe 1 is in close contact with a measured position.

The needle sensor may be a needle temperature sensor, a needle voltage sensor, or the like. Usually, the sensor is connected in the detection device, the probe 1 is electrically connected with a controller (the controller comprises a singlechip and the like pre-stored with a set program) and a display unit through a signal cable, the probe 1 transmits detected temperature signals, voltage signals and the like to the controller, the controller outputs the signals to the display unit, and the display unit displays the detected temperature and voltage data.

The needle sensor of the embodiment is used for being fixed in a detection device to measure the temperature, the voltage and the like of a measured object (such as a storage battery and the like), when in detection, the part of the probe 1, which is used for being contacted with the measured object, is arranged downwards, the detection device can be covered on the measured object, under the action of gravity of the detection device, the elastic part 2 is in a compressed state, under the action of elastic force of the elastic part 2, the elastic part 2 can push the probe 1 to be in close contact with a measured position, the problem that the probe 1 is separated from the measured object to cause poor contact is prevented, and the accurate measurement of the voltage, the temperature and other information of the measured object is ensured.

As an alternative embodiment, referring to fig. 1 and 4, the connecting member (the bolt body 3) of the present embodiment is provided with an external thread on its peripheral wall for screwing with the insulator of the inspection equipment. Above-mentioned insulating part can the insulation board, and the insulation board is fixed in check out test set for fixed all needle type sensors, needle type sensor pass through above-mentioned mode and insulation board threaded connection, the dismouting of being convenient for, convenient to use.

As an alternative embodiment, referring to fig. 1-6, the probe 1 is provided with a boss structure 21, and the outer diameter of the boss structure 21 is larger than that of the rest of the probe 1 for abutting against the lower end of the elastic part 2.

The boss structure 21 can be integrally formed with the rest part of the probe 1, an unnecessary connecting structure is not needed, the stability of the structure is guaranteed, and the boss structure can be matched with a connecting piece (a bolt body 3) to guarantee stable fixation of the elastic part.

As an alternative embodiment, referring to fig. 1-6, the connecting member of this embodiment includes a bolt body 3, a lock nut 5 is connected to the bolt body 3, and the lock nut 5 and a head 31 of the bolt body 3 are used for clamping on two sides of an insulating member of the detection device. When the bolt body 3 is in threaded connection with the insulating plate of the detection equipment, the locking nut 5 can be in threaded connection with the bolt body 3, so that the locking nut 5 and the end 31 of the bolt body 3 are clamped on two sides of the insulating plate, and the stability of the connection structure between the bolt body 3 and the insulating plate is ensured.

As an alternative embodiment, referring to fig. 1-6, the elastic part 2 of the present embodiment includes a compression spring, and the compression spring is sleeved on the periphery of the probe 1. When detecting, the part that is used for with the measured object contact of probe 1 sets up down, and check out test set can cover and close on the measured object, and under check out test set's action of gravity, compression spring is in compression state, and under compression spring's elastic force effect, compression spring can promote probe 1 and the position in close contact with that is surveyed, prevents that probe 1 from taking place to break away from with the measured object and leading to contact failure's problem to appear, has guaranteed the accurate survey of information such as measured object voltage, temperature.

As an alternative embodiment, referring to fig. 4 and 6, a limiting cavity 33 is further formed in the lower end of the connecting piece, the limiting cavity 33 is communicated with the accommodating cavity 32, the limiting cavity 33 surrounds the periphery of the accommodating cavity 32, and the upper end of the elastic part 2 is positioned in the limiting cavity 33 and abuts against the upper wall of the limiting cavity 33.

The upper end of the elastic part 2 is located in the limit cavity 33, the limit cavity 33 can prevent the position of the elastic part 2 (compression spring) from shifting left and right, as shown in fig. 4 and 6, two ends of the elastic part 2 (compression spring) respectively abut against the upper wall of the limit cavity 33 and the boss structure 21 of the probe 1, and the elastic part can be in a compressed state under the action of gravity of the detection device.

In this embodiment, two specific embodiments of the needle sensor are provided:

example one

Referring to fig. 1 to 3, in the present embodiment, a pin-type temperature sensor is provided, in which a probe 1 is a temperature probe, and a signal cable 4 is inserted through a connecting member (a bolt body 3) and is arranged along an axis of the connecting member.

As an alternative embodiment, the lower end of the temperature probe is provided with a detection surface 11 for contacting the measured location.

The PTC resistor is arranged in the temperature probe and is directly and tightly contacted with a product to be detected, when the temperature rises or falls, the resistance value of the PTC resistor is changed, and a detection signal is sent out through a signal cable 4 embedded in the temperature probe.

The whole stainless steel that is of above-mentioned needle type temperature sensor can be used for measuring battery cell's temperature, is in the same place a plurality of needle type temperature sensor integrations, can carry out temperature measuring by effectual multiple spot fast.

The second embodiment:

the second embodiment is different from the first embodiment in that: referring to fig. 4-6, in the present embodiment, a pin-type voltage sensor is provided, in which a probe 1 is a voltage probe, an end of a signal cable 4 is provided with a mounting washer 6, and the mounting washer 6 is sleeved on a connecting member and clamped and fixed by two nut members 7. Referring to fig. 5 and 6, a gasket 8 is arranged between the nut member 7 and the mounting washer 6 to ensure the structural stability.

As an alternative embodiment, the lower end of the voltage probe is provided with a detection tip 12 for contact with the location to be measured.

The detecting tip 12 of the voltage probe is used to closely contact with an object to be detected (e.g., an electrode of a battery), and a voltage signal is transmitted through the signal cable 4 connected to the voltage probe.

The whole stainless steel that is of needle type voltage sensor for detect battery cell voltage, be in the same place a plurality of needle type voltage sensor integrations, can realize the short-term test to battery cell voltage.

The particular features, structures, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A needle sensor comprising a probe, a flexible portion and a connector, wherein:

an accommodating cavity is formed in the connecting piece, and at least part of the probe is positioned in the accommodating cavity and is connected with the signal cable; two ends of the elastic part respectively abut against the probe and the connecting piece, and when the needle type sensor is connected in the detection equipment, the elastic part is in a compressed state under the action of gravity of the detection equipment, so that the probe is in close contact with a measured position.

2. Needle sensor according to claim 1, wherein the connector is provided with an external thread on its peripheral wall for screwing with an insulator of the detection device.

3. A needle sensor according to claim 1, wherein the probe is provided with a boss formation having an outer diameter greater than the remainder of the probe for abutment with the lower end of the resilient portion.

4. The needle sensor of claim 1 wherein the connector comprises a threaded shank having a locking nut attached thereto, the locking nut and the shank having ends for clamping against the insulating member of the test device.

5. The needle sensor of claim 1, wherein the resilient portion comprises a compression spring that is disposed around the probe.

6. The needle sensor according to claim 1 or 5, wherein a limiting cavity is further formed in the lower end of the connecting member, the limiting cavity is communicated with the accommodating cavity and surrounds the periphery of the accommodating cavity, and the upper end of the elastic part is located in the limiting cavity and abuts against the upper wall of the limiting cavity.

7. The needle sensor of claim 1 wherein the probe is a temperature probe and the signal cable extends through the connector and is disposed along an axis of the connector.

8. The needle sensor according to claim 7, wherein the lower end of the temperature probe is provided with a detection surface for contacting a measured location.

9. The needle sensor of claim 1, wherein the probe is a voltage probe, and the end of the signal cable is provided with a mounting washer, which is fitted around the connector and clamped by two nut members.

10. The needle sensor according to claim 9, wherein the lower end of the voltage probe is provided with a sensing tip for contacting a location to be measured.