CN210625948U - Air tightness test fixing tool for PTC heater assembly - Google Patents
Air tightness test fixing tool for PTC heater assembly Download PDFInfo
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- CN210625948U CN210625948U CN201921845225.1U CN201921845225U CN210625948U CN 210625948 U CN210625948 U CN 210625948U CN 201921845225 U CN201921845225 U CN 201921845225U CN 210625948 U CN210625948 U CN 210625948U
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- heater assembly
- ptc heater
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Abstract
The utility model provides a PTC heater assembly airtightness test fixing tool, which solves the technical problems that the existing PTC assembly airtightness test is easy to have inaccurate placing position, thereby causing inaccurate measuring result and wasting time and labor, wherein a first cylinder, a front groove plate and a rear groove plate are sequentially arranged on a fixed mounting plate from left to right, a first cylinder piston rod is connected with the front groove plate, and the front groove plate and the rear groove plate are arranged at intervals; the front groove plate is provided with an inflation through hole and a closed groove for sealing the head of the PTC heater assembly, and the closed groove is communicated with the inflation through hole; the rear groove plate is provided with a semi-closed groove which is used for accommodating the bottom of the PTC heater assembly in a matching way, and the semi-closed groove is arranged opposite to the closed groove; when the first cylinder piston rod extends, the PTC heater assembly is in a locked state by pushing the front groove plate to be close to the rear groove plate; when the first cylinder piston rod contracts, the front groove plate is driven to be far away from the rear groove plate, so that the PTC heater assembly is in a released state, and the PTC heater assembly can be widely applied to the technical field of electric heater production.
Description
Technical Field
The utility model relates to an electric heater production technical field, in particular to frock is fixed in airtight test of PTC heater assembly.
Background
With the rapid development of science and technology, new energy automobiles become the main trend in the present and future, and the new energy automobiles mostly adopt PTC heaters for heating. For safety reasons, most customers require that the PTC assembly achieve a certain air tightness level, and therefore, the PTC heater assembly must go through an air tightness detection process before being shipped from a factory, and the quality of the PTC heater assembly is strictly controlled through the air tightness test. The air tightness test is a test in which air pressure is applied to a terminal hole of a head of the PTC heater assembly and maintained for a certain period of time to determine whether the air tightness of the PTC heater assembly meets the requirements. At present, the PTC assembly is still manually operated in the airtight testing process, so that the position is easily placed inaccurately, the measuring result is inaccurate, time and labor are wasted, the operation is troublesome, and the production efficiency is seriously influenced.
Disclosure of Invention
The utility model aims at solving the not enough of above-mentioned technique, provide a frock is fixed in airtight test of PTC heater assembly, simple structure satisfies the test requirement, and operates labour saving and time saving.
Therefore, the utility model provides a PTC heater assembly airtightness testing fixing tool, which is provided with a fixing mounting plate, a first cylinder, a front groove plate and a rear groove plate, wherein the first cylinder, the front groove plate and the rear groove plate are all mounted on the fixing mounting plate, the first cylinder, the front groove plate and the rear groove plate are sequentially arranged from left to right, a piston rod of the first cylinder is connected with the front groove plate, and the front groove plate and the rear groove plate are arranged at intervals; under the extension or contraction of a piston rod of the first cylinder, the front groove plate is close to or far away from the rear groove plate; the front groove plate is provided with an inflation through hole and a closed groove used for sealing the head of the PTC heater assembly, and the closed groove is communicated with the inflation through hole; the rear groove plate is provided with a semi-closed groove which is used for accommodating the bottom of the PTC heater assembly in a matching mode, and the direction of the notch of the semi-closed groove is opposite to the direction of the notch of the closed groove; when a piston rod of the first cylinder extends, the PTC heater assembly is locked between the front groove plate and the rear groove plate by pushing the front groove plate to be close to the rear groove plate; when the piston rod of the first cylinder contracts, the PTC heater assembly is released between the front groove plate and the rear groove plate by driving the front groove plate to be away from the rear groove plate.
Preferably, the utility model discloses still be equipped with well frid, well frid is installed on fixed mounting panel, and well frid setting is between preceding frid and back frid, and offers the direction logical groove that is used for the adaptation to support the PTC heater assembly in the width direction on the well frid.
Preferably, the front slot plate is also connected with an inflation tube, and the inflation tube is communicated with the closed slot through an inflation through hole.
Preferably, the utility model is also provided with a bracket, a second cylinder, a pressure rod and a pressure head for plugging the vent hole of the PTC heater assembly, wherein the bracket is arranged on the fixed mounting plate, the second cylinder is connected with the bracket, one end of the pressure rod is connected with a piston rod of the second cylinder, and the other end of the pressure rod is connected with the pressure head; when the piston rod of the second cylinder extends or contracts, the pressure head is close to the vent hole which is blocked or separated from the PTC heater assembly.
Preferably, the utility model is also provided with a guide rod and a guide hole; the first cylinder is provided with a guide hole, one end of a guide rod is inserted into the guide hole in a matching manner and is connected with the guide hole in a sliding manner, and the other end of the guide rod is connected with the front groove plate; the central axis of the guide rod and the central axis of the piston rod of the first cylinder are parallel to each other.
Preferably, the utility model discloses still be equipped with the control box, the control box is installed on fixed mounting panel.
The utility model has the advantages that: the utility model provides a PTC heater assembly airtightness testing fixing tool, which is provided with a fixing mounting plate, a first cylinder, a front groove plate and a rear groove plate, wherein the first cylinder, the front groove plate and the rear groove plate are sequentially arranged on the fixing mounting plate from left to right; a piston rod of the first cylinder is connected with a front groove plate, and the front groove plate and the rear groove plate are arranged at intervals; the rear groove plate is provided with a semi-closed groove which is used for accommodating the bottom of the PTC heater assembly in a matching manner, and the orientation of the semi-closed groove is opposite to that of the closed groove; when a piston rod of the first cylinder extends, the PTC heater assembly is locked between the front groove plate and the rear groove plate by pushing the front groove plate to be close to the rear groove plate; when the piston rod of the first cylinder contracts, the PTC heater assembly is released between the front groove plate and the rear groove plate by driving the front groove plate to be away from the rear groove plate. The utility model discloses compare prior art scheme, its simple structure, operation labour saving and time saving, its first cylinder guide effect and semi-closed groove just to setting up the design such as, make the PTC heater assembly place the position accuracy, satisfy the test requirement, the simple operation has shortened test time simultaneously, has improved efficiency of software testing.
Drawings
Fig. 1 is a schematic structural view of a front view of the present invention;
FIG. 2 is a schematic structural view of the top view shown in FIG. 1;
FIG. 3 is a schematic structural diagram of the right side view shown in FIG. 1;
FIG. 4 is a schematic structural view of the perspective view shown in FIG. 1;
FIG. 5 is a schematic structural view of FIG. 1 with the bracket, second cylinder, ram and ram removed;
FIG. 6 is a schematic structural view in partial cross-section of the top view shown in FIG. 5;
FIG. 7 is a schematic structural view of a front slot plate and an inflation tube in a perspective view according to the present invention;
fig. 8 is a schematic structural view of a perspective view of a middle channel plate in the present invention;
fig. 9 is a schematic structural view of a perspective view of a rear channel plate according to the present invention;
fig. 10 is an example of a prior art PTC heater assembly.
The labels in the figure are: 1. the PTC heater assembly comprises a fixed mounting plate, 2, a first air cylinder, 3, a front groove plate, 4, a rear groove plate, 5, a piston rod, 6, an inflation through hole, 7, a closed groove, 8, a semi-closed groove, 9, a middle groove plate, 10, a guide through groove, 11, an inflation pipe, 12, a support, 13, a second air cylinder, 14, a pressure rod, 15, an air vent, 16, a pressure head, 17, a control box, 18, the head of the PTC heater assembly, 19, the bottom of the PTC heater assembly, 20, a guide rod and 21, a guide hole.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments to assist understanding of the invention. The method used in the utility model is a conventional method if no special regulation is provided; the raw materials and the apparatus used are, unless otherwise specified, conventional commercially available products.
As shown in fig. 1 to 7, 9 and 10, the utility model provides a fixed tool for testing the airtightness of a PTC heater assembly, which is provided with a fixed mounting plate 1, a first cylinder 2, a front groove plate 3 and a rear groove plate 4, wherein the first cylinder 2, the front groove plate 3 and the rear groove plate 4 are all mounted on the fixed mounting plate 1, the first cylinder 2, the front groove plate 3 and the rear groove plate 4 are sequentially arranged from left to right, a piston rod 5 of the first cylinder 2 is connected with the front groove plate 3, and the front groove plate 3 and the rear groove plate 4 are arranged at intervals; under extension or contraction of the piston rod 5 of the first cylinder 2, the front slot plate 3 approaches or moves away from the rear slot plate 4. The front groove plate 3 is provided with an inflation through hole 6 and a closed groove 7 for sealing a head 18 of the PTC heater assembly, and the closed groove 7 is communicated with the inflation through hole 6; in order to further improve the sealing effect between the head 18 of the PTC heater assembly and the sealing groove 7, a sealing ring is usually disposed on the head 18 of the PTC heater assembly, and the sealing ring makes the head 18 of the PTC heater assembly tightly fit with each other after being inserted into the sealing groove 7, thereby improving the sealing effect. The rear groove plate 4 is provided with a semi-closed groove 8 which is used for accommodating the bottom 19 of the PTC heater assembly in a matching mode, and the orientation of the semi-closed groove 8 is opposite to that of the closed groove 7. When a piston rod 5 of the first cylinder 2 extends, the front groove plate 3 is pushed to drive the PTC heater assembly to be close to the rear groove plate 4, and finally the PTC heater assembly is locked between the front groove plate 3 and the rear groove plate 4; when the piston rod 5 of the first cylinder 2 contracts, the front groove plate 3 is driven to be away from the rear groove plate 4, and finally the PTC heater assembly is released between the front groove plate 3 and the rear groove plate 4.
When the utility model is used, a worker can control the first cylinder 2 by operating the electromagnetic valve, so that the piston rod 5 of the first cylinder 2 contracts and drives the front groove plate 3 to be far away from the rear groove plate 4 to the maximum displacement position, then the head 18 of the PTC heater assembly to be detected faces the closed groove 7 of the front groove plate 3 and is inserted, and at the moment, the head 18 of the PTC heater assembly is hermetically connected in the closed groove 7 of the front groove plate 3; because the semi-closed groove 8 of the rear groove plate 4 faces the closed groove 7, the bottom 19 of the PTC heater assembly faces the semi-closed groove 8 of the rear groove plate 4; and then operating the electromagnetic valve to control the first cylinder 2, extending a piston rod 5 of the first cylinder 2 and driving the front groove plate 3 to be close to the rear groove plate 4, wherein the bottom 19 of the PTC heater assembly is inserted into the semi-closed groove 8 of the rear groove plate 4 in an adaptive manner, and finally operating the electromagnetic valve to control the first cylinder 2 to enable the PTC heater assembly to be in a locked state between the front groove plate 3 and the rear groove plate 4, namely the PTC heater assembly is clamped between the front groove plate 3 and the rear groove plate 4, so that the preparation work before the airtight test of the PTC heater assembly is completed. And (3) the staff inflates air into the closed groove 7 through the inflation through hole 6 outside the front groove plate 3 and applies air pressure, the inflated air enters the closed groove 7 through the inflation through hole 6 and then enters the PTC heater assembly through the terminal hole of the head 18 of the PTC heater assembly, and after the air pressure is maintained for a period of time, the test of judging whether the air tightness of the PTC heater assembly meets the requirement is carried out. After the airtightness test of the PTC heater assembly is completed, a worker controls the first cylinder 2 by operating the electromagnetic valve, so that the piston rod 5 of the first cylinder 2 contracts and drives the front groove plate 3 to be far away from the rear groove plate 4, and at the moment, the bottom of the PTC heater assembly is separated from the semi-closed groove 8 of the rear groove plate 4 under the driving of the front groove plate 3, so that the PTC heater assembly is in a released state between the front groove plate 3 and the rear groove plate 4. The utility model provides a frock is fixed in airtight test of PTC heater assembly, its simple structure, operation labour saving and time saving, its first cylinder guide effect and semi-closed groove just to setting up the design such as with closed groove, make the PTC heater assembly place the position accuracy, satisfy the test requirement, the simple operation has shortened test time simultaneously, has improved efficiency of software testing.
As the preferred of this embodiment, as shown in fig. 1, fig. 2, fig. 4 to fig. 6, fig. 8, the present invention further includes a middle groove plate 9, the middle groove plate 9 is installed on the fixed mounting plate 1, the middle groove plate 9 is disposed between the front groove plate 3 and the rear groove plate 4, and a guiding through groove 10 for adaptively supporting the PTC heater assembly in the width direction is disposed on the middle groove plate 9. Under the extension or contraction of the piston rod 5 of the first cylinder 2, the front groove plate 3 carries the PTC heater assembly to be close to or far away from the rear groove plate 4, in the process, the middle groove plate 9 mainly plays two roles, namely supporting the PTC heater assembly to enable the whole process to be more stable on one hand, and guiding on the other hand, the guiding through groove 10 of the middle groove plate 9 is matched with the PTC heater assembly in the width direction to enable the bottom 19 of the PTC heater assembly to be more accurately inserted into or separated from the semi-closed groove 8 of the rear groove plate 4.
As shown in fig. 1 to 7, the front slot plate 3 is further connected with an inflation tube 11, and the inflation tube 11 is communicated with the closed slot 7 through the inflation through hole 6, so that the staff can conveniently connect with an external pneumatic system such as an electromagnetic valve and an air source. As a further preference, the inflation tube 11 may communicate with the inflation through hole 6 from the bottom through the fixed mounting plate 1. The pneumatic systems such as the solenoid valve and the air source connected to the gas tube 11 and the working principle thereof are not described herein again because they belong to the prior art.
As the optimization of the present embodiment, as shown in fig. 1 to 4 and 10, the present invention further comprises a bracket 12, a second cylinder 13, a pressure rod 14 and a pressure head 16 for sealing the vent hole 15 of the PTC heater assembly, wherein the bracket 12 is mounted on the fixed mounting plate 1, the second cylinder 13 is connected to the bracket 12, one end of the pressure rod 14 is connected to the piston rod 5 of the second cylinder 13, and the other end of the pressure rod 14 is connected to the pressure head 16; when the piston rod 5 of the second cylinder 13 extends or retracts, the ram 16 approaches the vent 15 that is plugged or disconnected from the PTC heater assembly. As a further preferred embodiment, the vent hole 15 of the PTC heater assembly is circular, the pressure head 16 is approximately spherical, and the spherical size of the pressure head 16 is larger than the size of the vent hole 15 of the PTC heater assembly, so that when the pressure head 16 blocks the vent hole 15 of the PTC heater assembly, the contact surface between the two is matched, and the sealing effect is improved. After the staff of our company finishes the PTC heater assembly of the airtight test, the next procedure is to carry out silica gel sealing on the terminal part of the PTC heater assembly for meeting the airtight quality requirement. Some customers can perform the air tightness test on the product again after receiving the PTC heater assembly, which requires that the vent hole 15 is formed in the PTC heater assembly when the PTC heater assembly is produced so as to meet the requirement of the customers for performing the air tightness test again by using the vent hole 15, and requires that the vent hole 15 is blocked when the air tightness test is performed for the first time; after the staff sets up the PTC heater assembly between front frid 3 and rear frid 4 and is in the state of being locked, the solenoid valve of operation control second cylinder 13 makes the piston rod 5 extension of second cylinder 13, drives pressure head 16 and is close to and blocks up PTC heater assembly's air vent 15 to guarantee not influenced by air vent 15 when the gas tightness of test PTC heater assembly. When the PTC heater assembly airtightness test is completed, the solenoid valve controlling the second cylinder 13 is first operated to contract the piston rod 5 of the second cylinder 13, thereby moving the ram 16 away from the vent hole 15 of the PTC heater assembly.
As shown in fig. 1, 2, 5, and 6, the present invention is preferably further provided with a guide rod 20 and a guide hole 21. The first cylinder 2 is provided with a guide hole 21, and usually the guide hole 21 is provided in the cylinder wall of the first cylinder 2. One end of the guide rod 20 is inserted into the guide hole 21 in a matching manner, the guide rod 20 is connected with the guide hole 21 in a sliding manner, and the other end of the guide rod 20 is connected with the front groove plate 3; the other end of the guide rod 20 is normally fixedly connected to the front channel plate 3. The central axis of the guide rod 20 and the central axis of the piston rod 5 of the first cylinder 2 are parallel to each other; the guide rod 20 mainly has two functions, namely, a guide function, and during the extension or contraction process of the piston rod 5 of the first cylinder 2, the guide rod 20 extends or contracts relative to the guide hole 21 to drive the front groove plate 3 to move along the extension or contraction direction of the piston rod 5 of the first cylinder 2; on the other hand, the support function supports the front channel plate 3 closer to or further away from the rear channel plate 4, making the process more stable. As a further preference, the number of the guide rods 20 is set to 2, and the guide rods 20 are symmetrically arranged at both sides of the piston rod 5 of the first cylinder 2, so that the guide rods 20 support the front slot plate 3 to move back and forth more stably.
As shown in fig. 1 to 6, the present invention is preferably further provided with a control box 17, and the control box 17 is mounted on the fixed mounting plate 1. The control box 17 can be electrically connected to the pneumatic systems of the first and second cylinders 2, 13. It should be particularly noted that first cylinder 2, second cylinder 13 belong to current device, pneumatic system such as solenoid valve, pipeline, air supply and theory of operation that are linked together with first cylinder 2, second cylinder 13 are owing to belong to prior art, no longer repeated here.
In the description of the present invention, it should be understood that the terms "left", "right", "upper", "lower", "top", "bottom", "front", "rear", "inner", "outer", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships 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 being 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.
However, the above description is only an embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.
Claims (6)
1. A PTC heater assembly airtightness test fixing tool is characterized by being provided with a fixing mounting plate, a first air cylinder, a front groove plate and a rear groove plate, wherein the first air cylinder, the front groove plate and the rear groove plate are all mounted on the fixing mounting plate, the first air cylinder, the front groove plate and the rear groove plate are sequentially arranged from left to right, a piston rod of the first air cylinder is connected with the front groove plate, and the front groove plate and the rear groove plate are arranged at intervals; under the extension or contraction of a piston rod of the first cylinder, the front groove plate is close to or far away from the rear groove plate; the front groove plate is provided with an inflation through hole and a closed groove for sealing the head of the PTC heater assembly, and the closed groove is communicated with the inflation through hole; the rear groove plate is provided with a semi-closed groove which is used for accommodating the bottom of the PTC heater assembly in a matching manner, and the orientation of the semi-closed groove is opposite to that of the closed groove; when a piston rod of a first cylinder extends, the PTC heater assembly is in a locked state between the front groove plate and the rear groove plate by pushing the front groove plate to be close to the rear groove plate; when a piston rod of the first cylinder contracts, the front groove plate is driven to be far away from the rear groove plate, so that the PTC heater assembly is in a released state between the front groove plate and the rear groove plate.
2. A PTC heater assembly airtightness test fixing tool according to claim 1, wherein a middle groove plate is further provided, the middle groove plate is mounted on the fixing mounting plate, the middle groove plate is disposed between the front groove plate and the rear groove plate, and a guide through groove for supporting the PTC heater assembly in a width direction in an adaptive manner is provided on the middle groove plate.
3. The airtight test fixing tool for the PTC heater assembly according to claim 1, wherein the front slot plate is further connected with an inflation tube, and the inflation tube is communicated with the closed slot through the inflation through hole.
4. The airtight test fixing tool for the PTC heater assembly according to claim 1, further comprising a bracket, a second cylinder, a pressure rod and a pressure head for plugging a vent hole of the PTC heater assembly, wherein the bracket is mounted on the fixing mounting plate, the second cylinder is connected with the bracket, one end of the pressure rod is connected with a piston rod of the second cylinder, and the other end of the pressure rod is connected with the pressure head; when the piston rod of the second air cylinder extends or contracts, the pressure head is close to the vent hole which is blocked or separated from the PTC heater assembly.
5. The airtight test fixture of a PTC heater assembly according to claim 1, characterized in that it is further provided with a guide rod and a guide hole; the first cylinder is provided with the guide hole, one end of the guide rod is inserted into the guide hole in a matching manner and is connected with the guide hole in a sliding manner, and the other end of the guide rod is connected with the front groove plate; the central axis of the guide rod is parallel to the central axis of the piston rod of the first cylinder.
6. A PTC heater assembly airtightness test fixing tool according to claim 1, further comprising a control box, wherein the control box is mounted on the fixing mounting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921845225.1U CN210625948U (en) | 2019-10-30 | 2019-10-30 | Air tightness test fixing tool for PTC heater assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921845225.1U CN210625948U (en) | 2019-10-30 | 2019-10-30 | Air tightness test fixing tool for PTC heater assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210625948U true CN210625948U (en) | 2020-05-26 |
Family
ID=70763768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921845225.1U Active CN210625948U (en) | 2019-10-30 | 2019-10-30 | Air tightness test fixing tool for PTC heater assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210625948U (en) |
-
2019
- 2019-10-30 CN CN201921845225.1U patent/CN210625948U/en active Active
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A fixed tooling for air tightness test of PTC heater assembly Effective date of registration: 20230203 Granted publication date: 20200526 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: WEIHAI KEBOLE AUTOMOTIVE ELECTRONICS CO.,LTD. Registration number: Y2023980031955 |