Spray test tool and ceramic PTC electric heating spray test device

Abstract

The utility model provides a spray test tool and a ceramic PTC (Positive Temperature Coefficient) electric heating spray test device, relates to the technical field of detection, and solves the technical problem of low efficiency caused by manual test in the prior art. The spray test tool comprises a test chamber, a spray device and a support frame body are arranged in the test chamber, the spray device and the support frame body are oppositely arranged, a fixed support is arranged on the support frame body, and the fixed support is arranged on the support frame body through a lifting adjusting assembly. The utility model is used for providing the spray test tool and the ceramic PTC electric heating spray test device capable of improving the spray test efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a spray testing tool and a ceramic PTC electric heating spray testing device. Background Art

[0002] Ceramic PTC electric heaters are increasingly used in modern industry and daily life. To ensure their stable performance and product quality, PTC electric heaters need to be rigorously tested. Spray testing is an important means of verifying the performance of PTC electric heaters.

[0003] However, existing spray testing devices are complex and require large batches of PTC heaters to be tested at once. For spray testing of small batches of PTC heaters, suitable testing equipment is lacking, and manual testing is currently the only option. Furthermore, small batch testing typically involves testing PTC heaters of varying sizes, which often vary significantly in height. Therefore, height adjustment of the PTC heaters is particularly important during testing. Utility Model Content

[0004] The purpose of this utility model is to provide a spray test fixture and a ceramic PTC electric heating spray test device to address the technical problem of low efficiency caused by manual testing methods in the prior art. The various technical effects produced by the preferred technical solution among the various technical solutions provided by this utility model are detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The utility model provides a spray test tool and a ceramic PTC electric heating spray test device, which include a test chamber, in which a spray device and a support frame are arranged. The spray device and the support frame are arranged relative to each other, and a fixed bracket is arranged on the support frame. The fixed bracket is arranged on the support frame through a lifting and adjusting component.

[0007] Preferably, the lifting and adjusting assembly includes a sliding guide groove and a sliding structure, the sliding guide groove is provided on the support frame, the sliding structure cooperates with the sliding guide groove, and the sliding structure can be lifted and moved along the sliding guide groove;

[0008] A fastening assembly is provided between the sliding structure and the fixing bracket, and the fastening assembly is used to lock the fixing bracket on the supporting frame.

[0009] Preferably, the fastening assembly includes a fastening bolt and a fastening nut, a first positioning hole is provided on the sliding structure, a second positioning hole is provided on the fixing bracket, and the fastening bolt passes through the first positioning hole and the second positioning hole to be connected with the fastening nut.

[0010] Preferably, the sliding structure is a bearing.

[0011] Preferably, the fixing bracket is an L-shaped structure, and a limit baffle is provided on the fixing bracket.

[0012] Preferably, a movable baffle is further provided on the fixed bracket, the limit baffle is arranged parallel to the movable baffle, a sliding column is provided on the limit baffle, a sliding through hole is provided on the movable baffle, and the movable baffle is slidably arranged on the sliding column through the sliding through hole.

[0013] Preferably, an elastic member is further provided on the sliding column, and the elastic force of the elastic member is used to drive the movable baffle to move closer to the limit baffle.

[0014] Preferably, two groups of the spray devices are provided, and the two groups of the spray devices are arranged on both sides of the support frame, and the support frame is provided with the fixing brackets arranged away from the spray devices on both sides.

[0015] Preferably, the support frame is made of aluminum profile.

[0016] A ceramic PTC electric heating spray testing device comprises the spray testing tooling described above.

[0017] The beneficial effects of the present invention are as follows: the spray test tool and ceramic PTC electric heating spray test device provided by the present invention include a test chamber, a spray device and a support frame are arranged in the test chamber, a fixed bracket is arranged on the support frame, the fixed bracket is used to fix the PTC electric heater, the spray device and the support frame are arranged relative to each other, and are used to spray the PTC electric heater to complete the spray test, which greatly reduces labor and improves the test efficiency of the inspector; the fixed bracket is arranged on the support frame through a lifting and adjusting component, thereby realizing the lifting and adjusting of the fixed bracket, so as to adjust the position of the fixed bracket according to PTC electric heaters of different sizes and complete the spray test of PTC electric heaters of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is a top view of the utility model;

[0021] Figure 3 It is a cross-sectional view (1) of the present utility model;

[0022] Figure 4 It is a schematic diagram of the partial structure of A of the present utility model;

[0023] Figure 5 It is a cross-sectional view (II) of the present utility model;

[0024] Figure 6 It is a schematic diagram of the B local structure of the present utility model.

[0025] In the picture:

[0026] 100. Test chamber;

[0027] 110. Support frame;

[0028] 120, fixed bracket;

[0029] 130. Spray device;

[0030] 140, limit baffle;

[0031] 150, movable baffle;

[0032] 160, sliding column;

[0033] 170, elastic member;

[0034] 180, sliding guide groove;

[0035] 190, sliding structure;

[0036] 200. Tighten the bolts;

[0037] 210, tighten the nut;

[0038] 220. Lifting and adjusting assembly. DETAILED DESCRIPTION

[0039] Please refer to the following attached Figures 1 to 6And the text content understands the content of the present invention and the difference between the present invention and the prior art. The following is a further detailed description of the technical solution (including the preferred technical solution) of the present invention by means of the accompanying drawings and the enumeration of some optional embodiments of the present invention. It should be noted that: any technical feature and any technical solution in the present embodiment are one or more of a variety of optional technical features or optional technical solutions. In order to describe the need for brevity, it is impossible to exhaustively list all the alternative technical features and alternative technical solutions of the present invention in this document, nor is it convenient for the implementation of each technical feature to emphasize that it is one of the multiple optional implementations. Therefore, those skilled in the art should know that: any technical means provided by the present invention can be replaced or any two or more technical means or technical features provided by the present invention can be combined with each other to obtain a new technical solution. Any technical feature and any technical solution in this embodiment do not limit the scope of protection of the present invention. The scope of protection of the present invention should include any alternative technical solutions that can be thought of by those skilled in the art without paying creative work and new technical solutions obtained by those skilled in the art by combining any two or more technical means or technical features provided by the present invention.

[0040] In the description of the present invention, it should be noted that, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention depending on the specific circumstances.

[0042] The utility model provides a spray test tool and a ceramic PTC electric heating spray test device for improving the spray test efficiency.

[0043] The following combination Figures 1 to 6 The technical solution provided by the utility model is described in more detail.

[0044] The utility model provides a spray test tool, such as Figure 1-Figure 2 As shown, it includes a test chamber 100, in which a spray device 130 and a support frame 110 are provided. The spray device 130 and the support frame 110 are arranged relative to each other, and a fixed bracket 120 is arranged on the support frame 110. The fixed bracket 120 is arranged on the support frame 110 through a lifting and adjusting component 220.

[0045] The spray test tool provided by the present invention includes a test chamber 100, in which a spray device 130 and a support frame 110 are provided, and a fixed bracket 120 is provided on the support frame 110. The fixed bracket 120 is used to fix the PTC electric heater. The spray device 130 and the support frame 110 are arranged relative to each other and are used to spray the PTC electric heater to complete the spray test, which greatly reduces labor and improves the test efficiency of the inspector; the fixed bracket 120 is arranged on the support frame 110 through a lifting and adjusting component 220, thereby realizing the lifting and adjusting of the fixed bracket 120, so as to adjust the position of the fixed bracket 120 according to PTC electric heaters of different sizes and complete the spray test of PTC electric heaters of different sizes.

[0046] It can be understood that a fixed bracket 120 is provided on the support frame 110, and multiple fixed brackets 120 can be provided. Multiple fixed brackets 120 can fix multiple PTC electric heaters at the same time, complete the test at the same time, improve the test efficiency, and can be adjusted according to the size of different PTCs. The spray test of multiple PTCs of different sizes can be completed at the same time, which is very convenient and improves the test efficiency.

[0047] In some embodiments of the present invention, Figure 3-Figure 4 As shown, the lifting and adjusting assembly 220 includes a sliding guide groove 180 and a sliding structure 190. The sliding guide groove 180 is provided on the support frame 110. The sliding structure 190 cooperates with the sliding guide groove 180. The sliding structure 190 can move up and down along the sliding guide groove 180.

[0048] A fastening assembly is disposed between the sliding structure 190 and the fixing bracket 120 , and the fastening assembly is used to lock the fixing bracket 120 on the supporting frame 110 .

[0049] In some of the above-mentioned embodiments of the present invention, the lifting and adjusting component 220 includes a sliding guide groove 180 and a sliding structure 190. The sliding structure 190 is slidably arranged in the sliding guide groove 180 and can be lifted and lowered along the sliding guide groove 180. The fastening component can lock the fixed bracket 120 on the support frame 110, so that the fixed bracket 120 can be fixed in a specified position. When the position of the fixed bracket 120 needs to be adjusted, the fixed bracket 120 is separated from the support frame 110 through the fastening component, and then the height adjustment of the fixed bracket 120 can be completed by adjusting the position of the sliding structure 190 in the sliding guide groove 180. It is very convenient and fast, and the testing efficiency can be greatly improved.

[0050] In some embodiments of the present invention, the fastening assembly includes a fastening bolt 200 and a fastening nut 210, a first positioning hole is provided on the sliding structure 190, and a second positioning hole is provided on the fixing bracket 120, and the fastening bolt 200 passes through the first positioning hole and the second positioning hole and is connected to the fastening nut 210.

[0051] In some of the above-mentioned embodiments of the present invention, the fastening bolt 200 passes through the first positioning hole on the sliding structure 190 and the second positioning hole on the fixing bracket 120 and is connected to the fastening nut 210, so that the fixing bracket 120 can be fixed on the support frame 110 to ensure that the fixing bracket 120 can be fixed in the specified position; when the height of the fixing bracket 120 needs to be adjusted, the fastening nut 210 is loosened to allow the sliding structure 190 to slide along the sliding guide groove 180, so that the position adjustment of the fixing bracket 120 can be achieved. After the adjustment is completed, the fixing bracket 120 and the support frame 110 can be locked by fastening the nut 210.

[0052] In some embodiments of the present invention, the sliding structure 190 is a bearing, the first positioning hole is a bearing hole, and the fastening bolt 200 passes through the bearing hole on the bearing and the second positioning hole on the fixing bracket 120 to fix the fixing bracket 120 on the support frame 110.

[0053] In some embodiments of the present invention, the fixing bracket 120 is an L-shaped structure, and a limit stopper 140 is provided on the fixing bracket 120 .

[0054] In some of the above-mentioned embodiments of the present invention, the fixed bracket 120 is an L-shaped structure, and a limiting baffle 140 is provided on the fixed bracket 120. The fixed bracket 120 is used to carry the PTC electric heater, and the limiting baffle 140 is used to limit the position, ensuring that the PTC electric heater can be fixed on the fixed bracket 120, protecting the PTC electric heater, and preventing the electric heater from falling off the fixed bracket 120.

[0055] In some embodiments of the present invention, Figure 5-Figure 6 As shown, a movable baffle 150 is also provided on the fixed bracket 120, the limiting baffle 140 is arranged parallel to the movable baffle 150, a sliding column 160 is provided on the limiting baffle 140, and a sliding through hole is provided on the movable baffle 150, and the movable baffle 150 is slidably set on the sliding column 160 through the sliding through hole.

[0056] In some of the above-mentioned embodiments of the present invention, a movable baffle 150 is further provided on the fixed bracket 120. The movable baffle 150 can move closer to or away from the limit baffle 140 under the action of the sliding column 160 and the sliding through hole, so that the position of the PTC electric heater can be limited by the movable baffle 150 and the limit baffle 140. When one end of the PTC electric heater is placed on the fixed bracket 120, after being limited by the movable baffle 150 and the limit baffle 140, the other end of the PTC electric heater can be placed more quickly, and the shaking of one end of the PTC electric heater can be avoided from falling off the fixed bracket 120.

[0057] In some embodiments of the present invention, an elastic member 170 is further provided on the sliding column 160 , and the elastic force of the elastic member 170 is used to drive the movable baffle 150 to move closer to the limiting baffle 140 .

[0058] In some of the above-mentioned embodiments of the present invention, by sleeved on the sliding column 160, the elastic force of the elastic member 170 can drive the movable baffle 150 to approach the limit baffle 140. When the PTC electric heater is set on the fixed bracket 120, the elastic member 170 can make the movable baffle 150 abut against the PTC electric heater, so that the PTC electric heater is clamped between the movable baffle 150 and the limit baffle 140, so that the PTC is elastically clamped, thereby more effectively ensuring the stability of the PTC electric heater and preventing it from falling off.

[0059] In some embodiments of the present invention, two groups of the spray devices 130 are provided, and the two groups of the spray devices 130 are arranged on both sides of the support frame 110. The support frame 110 is provided with the fixing bracket 120 arranged away from the spray devices 130 on both sides.

[0060] In some of the above-mentioned embodiments of the present invention, the back-to-back fixed brackets 120 are respectively arranged on the support frame 110, so that the back-to-back fixed brackets 120 are respectively facing the spray devices 130 on both sides, and the two groups of fixed brackets 120 are arranged back to back, and the two groups of spray devices 130 are arranged on both sides of the support frame 110. The two groups of spray devices 130 are used to spray the two groups of fixed brackets 120 located on the middle support frame 110, thereby improving the spray effect, ensuring that the PTC electric heating spray detection effect on the fixed bracket 120 is better, improving the detection accuracy, and thus improving the production quality of ceramic PTC electric heating.

[0061] It should be noted that the support frame 110 is provided with back-to-back fixed brackets 120, which means that the fixed brackets 120 have two orientations, and the two orientations are opposite. The two fixed brackets 120 with opposite orientations are both provided on the support frame 110, thereby constituting a structure in which two groups of spray devices 130 are respectively arranged opposite to the fixed brackets 120 with opposite orientations. Moreover, since the fixed brackets 120 with opposite orientations are both provided on the support frame 110, the sprays of the two groups of spray devices 130 can diffuse in the direction of the other fixed bracket 120, thereby improving the spray effect.

[0062] In some embodiments of the present invention, the support frame 110 is an aluminum profile, which is provided with a card slot that can be used as a sliding guide slot 180, thereby significantly reducing production costs.

[0063] The utility model also provides a ceramic PTC electric heating spray testing device, which comprises the spray testing tooling as described above.

[0064] Embodiment 1:

[0065] The spray test tool provided by the utility model is as follows Figure 1-6 As shown, the test cavity includes an aluminum profile, a glass fiber board, and an acrylic board. The glass fiber board and the acrylic board serve as insulation and isolation from water vapor. During the test, the water vapor is more concentrated and the electric heating contacts the water vapor more evenly. The acrylic board is transparent and the internal state can be observed during the experiment.

[0066] A support frame 110 is provided in the middle of the test chamber 100 . Eight pairs of fixing brackets 120 are provided on the first side and the second side of the support frame 110 . The PTC electric heater is placed on a pair of fixing brackets 120 and supported by the fixing brackets 120 .

[0067] The fixed bracket 120 is an L-shaped structure, and the fixed brackets 120 on the first side and the second side of the support frame 110 are arranged back to back. Spray devices 130 are provided on both sides of the test cavity, and the two groups of spray devices 130 are arranged toward the support frame 110, so that the two groups of spray devices 130 can spray the PTC electric heaters on the fixed brackets 120 on the first side and the second side of the support frame 110 to complete the spray test of the PTC electric heater.

[0068] Furthermore, a limiting baffle 140 and a movable baffle 150 are provided on the fixed bracket 120, the limiting baffle 140 is arranged parallel to the movable baffle 150, a sliding column 160 is provided on the limiting baffle 140, a sliding through hole is provided on the movable baffle 150, and the movable baffle 150 is slidably set on the sliding column 160 through the sliding through hole.

[0069] Furthermore, an elastic member 170 is provided on the sliding column 160 , and the elastic force of the elastic member 170 is used to drive the movable baffle 150 to move closer to the limiting baffle 140 .

[0070] Furthermore, the fixing bracket 120 is disposed on the first side and the second side of the supporting frame 110 through a lifting adjustment component 220 .

[0071] Specifically, the lifting and adjusting assembly 220 includes a sliding guide groove 180 and a sliding structure 190. The sliding guide groove 180 is provided on the support frame 110. The sliding structure 190 cooperates with the sliding guide groove 180. The sliding structure 190 can move up and down along the sliding guide groove 180.

[0072] A fastening assembly is disposed between the sliding structure 190 and the fixing bracket 120 , and the fastening assembly is used to lock the fixing bracket 120 on the supporting frame 110 .

[0073] The fastening assembly includes a fastening bolt 200 and a fastening nut 210. A first positioning hole is provided on the sliding structure 190, and a second positioning hole is provided on the fixing bracket 120. The fastening bolt 200 passes through the first positioning hole and the second positioning hole and is connected to the fastening nut 210.

[0074] In this embodiment, the test chamber 100 is enclosed by a 40*40 aluminum profile to form a frame, and the support frame 110 is made of a 40*80 aluminum profile and is disposed in the middle of the test chamber 100 .

[0075] During the test, four PTC electric heaters are formed into a group, and eight pairs of fixing brackets 120 are used to fix two groups of PTC electric heaters respectively, and the spray test of the two groups of PTC electric heaters is completed at the same time.

[0076] Throughout this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0077] Of course, the invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A spray test tool, characterized in that: It comprises a test chamber, in which a spray device and a support frame are arranged. The spray device and the support frame are arranged relative to each other. A fixed bracket is arranged on the support frame, and the fixed bracket is arranged on the support frame through a lifting and adjusting component.

2. The spray test tool according to claim 1, characterized in that: The lifting and adjusting assembly includes a sliding guide groove and a sliding structure, wherein the sliding guide groove is provided on the support frame, and the sliding structure cooperates with the sliding guide groove, and the sliding structure can be lifted and moved along the sliding guide groove; A fastening assembly is provided between the sliding structure and the fixing bracket, and the fastening assembly is used to lock the fixing bracket on the supporting frame.

3. The spray test tool according to claim 2, characterized in that: The fastening assembly includes a fastening bolt and a fastening nut. A first positioning hole is provided on the sliding structure, and a second positioning hole is provided on the fixing bracket. The fastening bolt passes through the first positioning hole and the second positioning hole and is connected to the fastening nut.

4. The spray test tool according to claim 2, characterized in that: The sliding structure is a bearing.

5. The spray test tool according to any one of claims 1 to 4, characterized in that: The fixing bracket is an L-shaped structure, and a limit baffle is provided on the fixing bracket.

6. The spray test tool according to claim 5, characterized in that: The fixed bracket is also provided with a movable baffle, the limit baffle is arranged parallel to the movable baffle, a sliding column is arranged on the limit baffle, a sliding through hole is provided on the movable baffle, and the movable baffle is slidably arranged on the sliding column through the sliding through hole.

7. The spray test tool according to claim 6, characterized in that: An elastic member is further provided on the sliding column, and the elastic force of the elastic member is used to drive the movable baffle to move close to the limit baffle.

8. The spray test tool according to any one of claims 1 to 4, characterized in that: The spray devices are provided in two groups, and the two groups of spray devices are provided on both sides of the support frame. The support frame is provided with the fixing brackets which are arranged in the opposite directions to the spray devices on both sides.

9. The spray test tool according to any one of claims 1 to 4, characterized in that: The support frame is made of aluminum profile.

10. A ceramic PTC electric heating spray test device, characterized in that: The invention comprises the spray test tool as described in any one of claims 1 to 9.

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