CN112147540B - Detection tool for detecting number of effective fins of heat exchanger and using method - Google Patents
Detection tool for detecting number of effective fins of heat exchanger and using method Download PDFInfo
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- CN112147540B CN112147540B CN202010862430.XA CN202010862430A CN112147540B CN 112147540 B CN112147540 B CN 112147540B CN 202010862430 A CN202010862430 A CN 202010862430A CN 112147540 B CN112147540 B CN 112147540B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/54—Testing for continuity
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K21/00—Details of pulse counters or frequency dividers
Abstract
The application relates to the technical field of detection tools, and discloses a detection tool for detecting the number of effective fins of a heat exchanger and a use method. The detection tool comprises: the detection circuit comprises a power supply, a first pole of the power supply is suitable for being connected with the heat exchange tube of the heat exchanger, and a second pole of the power supply is suitable for being connected with the fin; and the detection device is connected with the detection circuit and is configured to detect the conduction condition of the detection circuit so as to judge whether the fin is an effective fin, so that the detection device is simple and feasible, high in detection efficiency and high in accuracy, the defects that the workload of a manual checking method is large and mistakes are easy to make are avoided, and further whether the tube expansion process is qualified can be judged.
Description
Technical Field
The application relates to the technical field of detection tools, in particular to a detection tool for detecting the number of effective fins of a heat exchanger and a using method.
Background
The tube fin type heat exchanger is formed by combining a heat exchange tube and a plurality of fins, the heat exchanger fins need to be detected in the process of analyzing, designing and producing the heat exchanger, whether each fin is an effective fin is detected, whether a tube expansion process is qualified is judged according to whether each fin is effective, wherein the effective fin means that the contact between the fin and the heat exchange tube of the heat exchanger is good.
In the prior art, the fins are mostly checked to see whether the fins are effective or not manually, because the fins are distributed densely and are large in quantity, the workload of a manual checking method is large, and mistakes are easy to make.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a detection tool for detecting the number of effective fins of a heat exchanger and a use method thereof, and aims to solve the problems that the method for manually checking whether the fins are effective in the related art is large in workload and easy to make mistakes.
According to a first aspect of the embodiments of the present invention, there is provided a detection tool for detecting the number of effective fins of a heat exchanger, including: the detection circuit comprises a power supply, wherein a first pole of the power supply is suitable for being connected with the heat exchange tube of the heat exchanger, and a second pole of the power supply is suitable for being connected with the fin; and the detection device is connected with the detection circuit and is configured to detect the conduction condition of the detection circuit so as to judge whether the fin is an effective fin.
Optionally, the detection device includes: and the counting module is connected with the detection circuit and is configured to record the conducting times of the detection circuit so as to obtain the number of the effective fins.
Optionally, the detection device comprises: a display module connected with the detection circuit and configured to provide display information corresponding to the conduction condition of the detection circuit.
Optionally, the detection device is connected in series to the detection circuit.
Optionally, the detection tool further comprises: and one end of the probe is connected with the second pole, and the other end of the probe is suitable for being in contact with the fin.
According to a second aspect of the embodiments of the present invention, there is provided a use method for the detection tool for detecting the number of the effective fins of the heat exchanger according to any one of the embodiments of the first aspect, including: connecting the detection device with the detection circuit; and a first pole of a power supply is connected with a heat exchange tube of the heat exchanger, a second pole of the power supply is connected with a fin, and the conduction condition of the detection circuit is detected by the detection device so as to judge whether the fin is an effective fin.
Optionally, the connecting the second pole with the fin specifically includes: and connecting the second pole with all fins of the heat exchanger one by one so as to obtain the number of effective fins through a counting module.
Optionally, connecting the second pole with all fins of the heat exchanger one by one specifically includes: and connecting the second pole with one end of the probe, and sequentially scratching the other end of the probe through all the fins.
Optionally, the heat exchange tube includes a plurality of consecutive hairpin pipes, and adjacent two the hairpin pipe passes through the elbow and connects, with the first utmost point of power with the heat exchange tube of heat exchanger is connected, specifically includes: connecting the first pole with any one of the hairpin tubes or with the elbow.
Optionally, the heat exchange tube includes a plurality of discrete hairpin tubes, the first pole of with the power is connected with the heat exchange tube of heat exchanger, specifically includes: and connecting the first pole with the plurality of hairpin tubes one by one to judge whether the fins arranged on each hairpin tube are effective fins.
The detection tool for detecting the number of the effective fins of the heat exchanger and the use method thereof provided by the embodiment of the disclosure can realize the following technical effects:
a first pole of the power supply is connected with the heat exchange tube, a second pole of the power supply is connected with the fins, the heat exchange tube and the fins are both conductors, and if the fins are effective fins, namely the fins and the heat exchange tube are in good contact, the detection circuit is conducted; if the fin is not an effective fin, namely the contact between the fin and the heat exchange tube is poor, the detection circuit is not conducted. The detection device judges whether the fin is an effective fin according to the conduction condition of the detection circuit, is simple and feasible, has high detection efficiency and high accuracy, and avoids the defects of large workload and easy error of a manual checking method. Whether the tube expansion process is qualified or not can be further judged, when the difference value between the total number of the fins and the number of the effective fins is smaller than or equal to a preset difference value, the effective fin proportion is high, the tube expansion process reaches the standard, and the product quality is high; when the difference between the total number of the fins and the number of the effective fins is larger than the preset difference, the effective fins occupy a lower proportion, the tube expanding process does not reach the standard, and the product quality is lower.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic view of a fitting structure of a heat exchanger and a detection tool provided in an embodiment of the present disclosure;
fig. 2 is a schematic view of a matching structure of another heat exchanger and a detection tool provided by the embodiment of the disclosure;
fig. 3 is a schematic flow chart of a method for using a detection tool according to an embodiment of the present disclosure.
Reference numerals are as follows:
the heat exchange tube comprises a 10 hairpin tube, a 20-elbow, a 30-fin, a 40-power supply, a 50-detection device, a 60-lead, a 70-probe and an 80-heat exchange tube.
Detailed Description
So that the manner in which the features and advantages of the embodiments of the present disclosure can be understood in detail, a more particular description of the embodiments of the disclosure, briefly summarized above, may be had by reference to the appended drawings, which are included to illustrate, but are not intended to limit the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate for the embodiments of the disclosure described herein. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used in other meanings besides orientation or positional relationship, for example, the term "upper" may also be used in some cases to indicate a certain attaching or connecting relationship. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the disclosed embodiments can be understood by those of ordinary skill in the art according to specific situations.
The term "plurality" means two or more unless otherwise specified.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.
With reference to fig. 1 and fig. 2, an embodiment of the present disclosure provides a detection tool for detecting the number of effective fins of a heat exchanger, including a detection circuit and a detection device 50.
The heat exchanger is a fin-tube heat exchanger, and the heat exchange tubes penetrate through the fins. The tube-fin heat exchanger is widely used in household appliances such as air conditioners, refrigerators, dehumidifiers and the like.
The detection circuit includes a power source 40, a first pole of the power source 40 being adapted to be connected to a heat exchange tube 80 of the heat exchanger by a wire 60, and a second pole being adapted to be connected to a fin 30 by a wire 60.
The power source 40 may be a dc power source or an ac power source. The power source 40 includes a first pole and a second pole, and in the case of a direct current power source, the first pole of the power source 40 is one of a positive pole and a negative pole, and the second pole is the other of the positive pole and the negative pole, in other words, one of the positive pole and the negative pole is connected to the heat exchange pipe 80, and the other of the positive pole and the negative pole is connected to the fin 30.
The detection device 50 is connected to the detection circuit and configured to detect the conduction of the detection circuit to determine whether the fin 30 is an effective fin.
The heat exchange tube 80 and the fin 30 are both conductors, and optionally, both the heat exchange tube and the fin are made of metal. When the contact between the fin 30 and the heat exchange tube 80 is good, the detection circuit is turned on, and the detection device 50 detects the conduction of the detection circuit and determines that the fin 30 is an effective fin. When the contact between the fin 30 and the heat exchange tube 80 is poor, the detection circuit is not conducted, and the detection device 50 determines that the fin 30 is a non-effective fin according to the non-conduction of the detection circuit.
Optionally, the detecting device 50 includes a counting module, connected to the detecting circuit, and configured to record the number of times that the detecting circuit is turned on, so as to obtain the number of the effective fins.
The second pole of the power supply 40 is connected with all the fins 30 on the heat exchange tube 80 one by one, and whether each fin 30 is an effective fin is judged according to the conduction condition of the detection circuit, so that the counting module records the conduction times of the detection circuit, and the total conduction times are the number of the effective fins.
Judging whether the tube expansion process reaches the standard or not according to the relation between the total number of the fins 30 and the number of the effective fins, wherein when the difference value between the total number of the fins 30 and the number of the effective fins is smaller than or equal to a preset difference value, the effective fin ratio is high, the tube expansion process reaches the standard, and the product quality is high; when the difference between the total number of the fins 30 and the number of the effective fins is larger than the preset difference, the effective fins have a low occupation ratio, the tube expansion process does not reach the standard, and the product quality is low.
The counting module may be a counter (e.g., a pulse counter) or other component having a counting function.
Optionally, the detecting apparatus 50 includes a display module, connected to the detecting circuit, and configured to provide display information corresponding to a conduction condition of the detecting circuit, where the conduction condition of the detecting circuit includes whether the detecting circuit is conducted and/or a number of times the detecting circuit is conducted.
When the display module provides information whether the detection circuit is conducted or not, if the detection circuit is conducted, the display module displays the display information that the detection circuit is conducted, and if the detection circuit is not conducted, the display module displays the display information that the detection circuit is not conducted. Whether the detection circuit is conducted or not corresponds to the currently tested fin 30 or not is an effective fin, therefore, the display information can display whether the currently tested fin 30 is an effective fin or not, so that a user can know whether the currently tested fin 30 is an effective fin or not,
when the display module provides display information corresponding to the conduction times of the detection circuit, for example, the display module directly displays a number, the number is the total conduction times of the detection circuit, the display module is connected with the counting module, and the display module displays the number of the effective fins recorded by the counting module. Because the total number of conducting times is equal to the number of the effective fins, a user can know the number of the effective fins according to the display information.
The display information can be one or more of voice, characters and numbers. The display module can be a display screen or a voice broadcaster and the like.
The detection device 50 may be a pulse counting module, which detects the number of times the detection circuit is turned on and records the number of times, and outputs the number as a result of the number of effective fins.
The detection device 50 may also be a bulb, the bulb is connected to the detection circuit and is connected in series with the power supply 40, when the fin 30 is an effective fin, and the detection circuit is turned on, the bulb emits light, and a user knows whether the current fin 30 to be tested is an effective fin according to whether the bulb emits light, and knows the number of effective fins according to the number of times that the bulb emits light, wherein the number of times that the bulb emits light is equal to the number of effective fins.
Optionally, the detection device 50 is connected in series to the detection circuit. Make detection frock simple structure in this application, equipment convenience on the one hand, on the other hand, detection device 50 establishes ties mutually with power 40 for the electric current that power 40 flowed must pass through detection device 50, thereby detection device 50 can detect whether detection circuitry switches on, provides detection device 50's detection sensitivity and rate of accuracy.
Optionally, as shown in fig. 1 and 2, the detection tool further includes a probe 70, and the second pole of the power source 40 is connected to the fin 30 through the probe 70. One end of the probe 70 is connected to the second pole and the other end of the probe 70 is adapted to contact the fin 30.
When the fins 30 need to be tested, the probes 70 are sequentially scratched from all the fins 30, the counting module records the number of the effective fins, and the display module displays the number of the effective fins recorded by the counting module.
As shown in fig. 1 and 2, the second pole is connected to one end of the probe 70 through a wire 60, and the first pole is connected to the heat exchanging pipe 80 through a wire 60.
The embodiment of the present disclosure further provides a using method, which is used for the detection tool for detecting the number of the effective fins of the heat exchanger in any one of the above embodiments, as shown in fig. 3, the using method includes step S302 and step S304.
In step S302, the detection device 50 is connected to the detection circuit.
The detection device 50 is connected in series with the detection circuit, that is, the detection device 50 is connected in series with the power source 40, so that the detection device 50 can detect the conduction condition of the detection circuit.
Step S304, a first pole of the power source 40 is connected to the heat exchange tube 80 of the heat exchanger, a second pole is connected to the fin 30, and the detection device 50 detects the conduction condition of the detection circuit to determine whether the fin 30 is an effective fin.
The power source 40 may be a dc power source 40 or an ac power source 40. The power source 40 includes a first pole and a second pole, and in the case of the dc power source 40, the first pole of the power source 40 is one of a positive pole and a negative pole, and the second pole is the other of the positive pole and the negative pole, in other words, one of the positive pole and the negative pole is connected to the heat exchange pipe 80, and the other of the positive pole and the negative pole is connected to the fin 30.
The heat exchange tube 80 and the fins 30 are both conductors, and when the fins 30 are in good contact with the heat exchange tube 80, the detection circuit is conducted, the detection device 50 detects that the detection circuit is conducted, and the fins 30 are judged to be effective fins. When the contact between the fin 30 and the heat exchange tube 80 is poor, the detection circuit is not conducted, and the detection device 50 determines that the fin 30 is a non-effective fin according to the non-conduction of the detection circuit.
In order to make the user clearly know the effective condition of the fins 30, a display module is provided, the display module is connected with the detection circuit and is connected in series with the power supply 40, the display module displays display information corresponding to the conduction condition of the detection circuit, in other words, the display module displays the conduction condition of the detection circuit, and whether the fins 30 are effective fins is judged according to the display information.
Optionally, in step S304, the connecting the second pole with the fin 30 specifically includes:
the second pole is connected one by one with all the fins 30 of the heat exchanger to obtain the number of active fins by means of a counting module.
The first pole is maintained to be connected with the heat exchange tube 80, the second pole is connected with all fins 30 of the heat exchanger one by one, for example, as shown in fig. 1 and fig. 2, a plurality of fins 30 are arranged on the heat exchange tube 80, and the second pole is sequentially connected with all fins 30 from left to right or from right to left, so that the effective conditions of all fins 30 are detected, the counting module records the conduction times of the detection circuit, and the conduction times of the detection circuit are equal to the number of the effective fins, so that the number of the effective fins can be obtained. And judging whether the tube expansion process is qualified or not according to the difference between the number of all the fins 30 and the number of the effective fins. When the difference between the total number of the fins 30 and the number of the effective fins is smaller than or equal to a preset difference, the effective fins have a high proportion, the tube expansion process reaches the standard, and the product quality is high; when the difference between the total number of the fins 30 and the number of the effective fins is larger than the preset difference, the effective fins have a low occupation ratio, the tube expanding process does not reach the standard, and the product quality is low.
Optionally, the connecting the second pole with all fins 30 of the heat exchanger one by one specifically includes:
a second pole is connected to one end of the probe 70 and the other end of the probe 70 is sequentially stroked across all of the fins 30.
For example, as shown in fig. 1 and 2, the heat exchange tube 80 is provided with a plurality of fins 30, and the other end of the probe 70 is sequentially passed over the fins 30 from left to right or from right to left to sequentially contact the fins 30, thereby detecting the number of effective fins.
The probe 70 sequentially passes through each fin 30 can be directly completed manually, or can be realized by arranging a motor and a transmission mechanism, for example, the transmission mechanism comprises a gear and a rack which are meshed with each other, the gear is arranged on an output shaft of the motor and meshed with the rack, the rack is connected with the probe 70, and the probe 70 is driven by the movement of the rack to sequentially pass through each fin 30.
The production process of the heat exchanger comprises pipe penetrating, expansion (pipe expansion) and elbow welding 20, wherein the pipe penetrating means that the hairpin pipes 10 penetrate the fins 30, the expansion means that the hairpin pipes 10 expand, and the elbow 20 is welded between every two adjacent hairpin pipes 10 after the pipe expansion is completed, so that the hairpin pipes 10 are communicated with each other, and a flow path is provided for the flow of a refrigerant.
The detection tool in the application can be used for detecting whether each fin 30 is an effective fin or not after the elbow 20 is welded, and acquiring the number of the effective fins. Or after expansion joint and before welding the elbow 20, whether each fin 30 is an effective fin can be detected, so as to detect whether the expansion joint process is qualified.
When the detection frock in this application is used for welding under the condition behind the elbow 20, heat exchange tube 80 includes a plurality of consecutive hairpin pipes 10, and two adjacent hairpin pipes 10 pass through elbow 20 and connect, as shown in fig. 1, heat exchange tube 80 includes 3 consecutive hairpin pipes 10 and includes two elbows 20, is connected the first utmost point of power 40 with the heat exchange tube 80 of heat exchanger, specifically includes:
a first pole of a power source 40 is connected to either one of the hairpin tubes 10 or the elbow 20.
The first pole is connected to the hairpin tube 10 or the elbow 20, the second pole is connected to the fin 30, and since the hairpin tube 10 and the elbow 20 are both conductors, the detection circuit can be conducted under the condition that the fin 30 and the heat exchange tube 80 are in good contact. And acquiring the number of effective fins according to the conducting times of the detection circuit, and judging whether the heat exchanger is qualified or not according to the difference value between the total number of fins 30 and the number of the effective fins. When the difference between the total number of the fins 30 and the number of the effective fins is smaller than or equal to a preset difference, the effective fins have a high proportion, and the product is qualified; when the difference between the total number of the fins 30 and the number of the effective fins is greater than the preset difference, the effective fin ratio is low, and the product is unqualified.
As shown in fig. 1, the fins 30 and the hairpin tubes 10 are in contact, and are each a conductor, and the first pole is connected to the bend 20, and the second pole is connected to the probe 70, it being understood that the first pole may also be connected to the hairpin tubes 10. Each fin 30 is securely touched by the probe 70 stroking across the fin 30 from left to right or from right to left. The detection device 50 adopts a pulse counting module, and the pulse counting module detects the electrifying times of the detection circuit, records and displays the electrifying times, and outputs the electrifying times as the number of the effective fins.
When the detection tool in the present application is used in the situation after expansion joint and before welding the elbow 20, the heat exchange tube 80 includes a plurality of discrete hairpin tubes 10, the hairpin tubes 10 are not communicated with each other, as shown in fig. 2, the heat exchange tube includes three discrete hairpin tubes 10, and the first pole of the power supply 40 is connected to the heat exchange tube 80 of the heat exchanger, which specifically includes:
the first pole of the power supply 40 is connected with the plurality of hairpin tubes 10 one by one to judge whether the fins 30 provided on each hairpin tube 10 are effective fins, record the number of the effective fins, and judge whether the expansion joint process of each hairpin tube 10 is qualified according to the number of the effective fins.
As shown in fig. 2, the heat exchange tube 80 includes three separate hairpin tubes 10, and each hairpin tube 10 is tested by the detection tool to detect the effect of the tube expansion process. When the elbow 20 is not welded, detecting the number of contact points of each hairpin tube 10 and each fin 30, and if the number of the contact points is equal to the number of the fins 30, indicating that all the fins 30 are effective fins, the contact between the fins 30 and the hairpin tubes 10 after tube expansion is good; if the number of the contact points is less than that of the fins 30, a point of poor contact between the fins 30 and the hairpin tubes 10 exists after tube expansion, and the point of poor contact indicates that the fins 30 are not effective fins.
The detection tool can also be used for testing the distance or the approximate distance between the fins 30 on the qualified heat exchanger, the qualified heat exchanger means that all the fins 30 are effective fins or most of the fins 30 are effective fins, and when all the fins 30 are effective fins, the distance L/(N-1) between the fins 30 can be obtained according to the distance L between the fins 30 at the two sides and the number N of the effective fins. When most of the fins 30 are effective fins, L/(N-1) can be considered to be the approximate spacing between the fins 30. The specific steps to obtain the spacing or approximate spacing between the fins 30 are:
testing the distance between the two most lateral fins 30, for example testing the distance L between the left most and right most fins 30 as in fig. 1 and 2;
the detection device 50 detects the conduction condition of the detection circuit, and the counting module records the conduction times of the detection circuit, wherein the conduction times are the number N of the effective fins;
L/(N-1) is the spacing or approximate spacing between fins 30.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (7)
1. The use method is used for detecting the detection tool for detecting the number of the effective fins of the heat exchanger, and is characterized in that the detection tool for detecting the number of the effective fins of the heat exchanger comprises the following steps:
the detection circuit comprises a power supply, a first pole of the power supply is suitable for being connected with the heat exchange tube of the heat exchanger, and a second pole of the power supply is suitable for being connected with the fin; and
the detection device is connected with the detection circuit and is configured to detect the conduction condition of the detection circuit so as to judge whether the fin is an effective fin or not, and the detection device comprises: the counting module is connected with the detection circuit and is configured to record the conducting times of the detection circuit so as to obtain the number of the effective fins;
the using method comprises the following steps:
connecting the detection device with the detection circuit;
connecting a first pole of a power supply with a heat exchange tube of the heat exchanger, connecting a second pole with a fin, and detecting the conduction condition of the detection circuit through the detection device to judge whether the fin is an effective fin;
the connecting the second pole with the fin specifically includes: connecting the second pole with all fins of the heat exchanger one by one so as to obtain the number of effective fins through a counting module;
the detection tool can also be used for testing the spacing or approximate spacing between the fins on the qualified heat exchanger, and the specific steps for obtaining the spacing or approximate spacing between the fins are as follows:
testing the distance L between the fins on the two sides;
the detection device detects the conduction condition of the detection circuit, and the counting module records the conduction times of the detection circuit, wherein the conduction times are the number N of the effective fins;
L/(N-1) is the spacing or approximate spacing between fins.
2. Use according to claim 1, wherein the detection means comprise:
a display module connected with the detection circuit and configured to provide display information corresponding to the conduction condition of the detection circuit.
3. Use according to claim 1,
the detection device is connected in series with the detection circuit.
4. The use according to any one of claims 1 to 3, further comprising:
and one end of the probe is connected with the second pole, and the other end of the probe is suitable for being in contact with the fin.
5. The use method according to claim 4, wherein the connecting the second pole with all fins of the heat exchanger one by one specifically comprises:
and connecting the second pole with one end of the probe, and sequentially scratching the other end of the probe through all the fins.
6. The use method according to claim 1, wherein the heat exchange tube comprises a plurality of hairpin tubes connected in sequence, two adjacent hairpin tubes are connected by an elbow, and the connecting the first pole of the power supply with the heat exchange tube of the heat exchanger specifically comprises:
connecting the first pole with any one of the hairpin tubes or with the elbow.
7. The use method according to claim 1, wherein the heat exchange tube comprises a plurality of discrete hairpin tubes, and the connecting the first pole of the power supply with the heat exchange tube of the heat exchanger specifically comprises:
and connecting the first pole with the plurality of hairpin tubes one by one to judge whether the fins arranged on each hairpin tube are effective fins.
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